Arsene Wenger says Arsenal want players at the club who focus on "values, not millions" but insists Alexis Sanchez was committed throughout his time in north London.
Sanchez completed his move to Manchester United on Monday in a swap deal that saw Henrikh Mkhitaryan join the Gunners.
Some reports claim the Chile star will earn as much as £350,000 a week at Old Trafford and Wenger last week suggested Arsenal had "no chance" of getting the player to sign a contract extension given the money on offer in the north west.
Wenger's comments came despite the club being placed sixth in the latest Deloitte table showing the richest clubs in the world in terms of revenue in 2016-17.
The 68-year-old maintains Arsenal are still restricted in their spending due to the costs of the Emirates Stadium but says he will always favour bringing players through the youth system to ensure they have the right attitude to playing for the club.
"You can't forget we have financial restrictions from the banks because of the stadium. We have to respect the financial plan," he told a news conference.
"We worked very hard to become richer and after that we have to spend the money in the most intelligent way we can in a transfer market that has become a bit out of control.
"Despite the financial superpowers we have now in our league and in Europe, I believe it's important that we keep the basis of our focus on getting people from inside the club.
"The way football is going is maybe not necessarily only to buy players for a huge amount of money, but to have players in the team who care about the club, who have a sense of belonging to the club.
"I'd rather encourage the club to push more on the quality of youth work rather than go into a way where it's only about millions and not about values. We are the only team to play with four, five players who have come out of the club."
Wenger concedes the sums on offer at United would have been hugely tempting for Sanchez but he maintains the former Barcelona man always showed a good attitude at Arsenal.
"When players get to a certain age and they want to go, you have to respect that," he said.
"At the end of the day, we are a serious football club with responsibilities and you want to spend the money you can afford. You have to make decisions at some stage. If you cannot afford then you have to say no.
"I said here before: he's 29 years old and it's maybe his last contract. Of course, the financial aspect is important.
"You can combine both. He goes to a great club and gets a great contract. You can combine both aspects.
"Sanchez is a great guy and has always been committed. He is a guy who loves football. When he's on the football pitch, he gives his all."
Wenger's focus is now on ensuring Mkhitaryan can "express his incredible talent" for Arsenal following a mixed 18 months in the Premier League under Jose Mourinho.
"Overall, I believe we lose a world-class player and we gain a world-class player. How efficiently that works will be down to the performances of both players," he added.
"Mkhitaryan has the qualities to integrate into our game. He has a good team attitude and I'm confident it will work. He can play in all kinds of positions so I think he's very versatile and it should help us to be very efficient.
"It's my challenge to get him to express his incredible talent.
"I would say he can bring quality of runs, quality of creativity, he can be very penetrating with his passing and his runs. He knows what it is to fight at the top level."
|LeBron James: Cavs worried about Lue health|
|F1 2018 Pre-Season Report: Red Bull|
|F1 2018 Pre-Season Report: Force India|
|Melbourne Victory 5 Central Coast Mariners 2: Berisha leads rout with hat-trick|
|Clarke breaks three vertebrae, Greipel has collarbone surgery|
|Waratahs blitz Rebels after scoring 38 unanswered points|
|Del Potro relishing Federer showdown|
|Australia to host two games against Team USA in 2019|
|Grizzlies snap 19-game losing streak, LeBron´s triple-double lifts Cavs|
|McIlroy suggests limiting alcohol sales after Bay Hill abuse|
|Marotta dismisses Allegri-PSG links as Juve focus on Can|
|MLS Review: Champions Toronto still winless, Atlanta crush Whitecaps|
|Lukaku: A lot of players will join Manchester United next season|
|I feel like I just woke up – Indian Wells finalist Federer explains slow start|
|High-flying Reds win third straight in Buenos Aires|
|Salah and Liverpool don´t fear Man City: We´ve beaten them!|
|What can I lose? - Mourinho defends criticism of Man Utd players|
|Mourinho accuses Manchester United of being scared to play|
|Mourinho delivers stinging Shaw criticism after FA Cup win|
|Haskell: England not good enough during Six Nations|
|Allegri waits on Chiellini update after Juve´s SPAL stalemate|
|Stenson leads by one with DeChambeau and McIlroy lurking|
|Racing put pressure on leaders Montpellier as Toulon are toppled|
|Klopp eases concerns over Can´s back complaint|
|Six Nations defeats make no difference to England mindset – Hartley|
|Matic was an island of personality - Mourinho questions United mentality|
|Del Potro demolishes Raonic to set up Federer final|
|He´s getting quicker on the Zimmer frame – Schmidt jokes about Best future|
|SPAL 0 Juventus 0: Scudetto charge halted by Serie A strugglers|
|Manchester United 2 Brighton and Hove Albion 0: Lukaku & Matic book semi-final spot|
|Fresh rib fracture for Cavendish but ´no serious injury´ after crash|
|Unbeaten Federer fights back to reach Indian Wells final|
|Klopp: Salah could be among world´s best, but don´t compare him to Messi|
|Woods hopes to still be within reach at Arnold Palmer Invitational|
|Championship Review: Wolves on the charge as Monk lifts Birmingham´s spirits|
|Twickenham boos will ´put me to sleep at night´, Jones claims|
|Salah threatening Rush´s record for goals in single Liverpool season|
|Hodgson hopes Zaha avoided injury|
|Snow causes Wakefield-Widnes abandonment|
|Liverpool 5 Watford 0: Inspirational Salah nets four as Reds bounce back|
|Lambert rues Everton´s ´offside´ opener in costly Stoke City defeat|
|Scotland´s late rally leaves Townsend feeling positive for the future|
|Wales hold off France to claim second behind Ireland|
|Man Utd bench Pogba & Sanchez for FA Cup quarter-final|
|Pardew: Evans loss key to Bournemouth defeat|
|Zarco breaks track record to claim Qatar pole after Rossi crashes in practice|
|Ireland had to make every moment count against England – Best|
|Salah breaks Torres´ impressive Liverpool record|
|We are not heroes one day and villains the next – Mourinho continues defence of Sevilla exit|
|Lions bounce back against Sunwolves, Stormers end miserable streak|
|Jones: England losing streak only natural|
|They have many players who´d get in my team – The Sevilla stars Mourinho should buy|
|Mario Gomez will not beg for World Cup place|
|England´s form continues to run cold in Twickenham snow|
|Nibali holds on in Milan-San Remo as Cavendish crashes again|
|Bournemouth 2 West Brom 1: Stanislas piles misery on Pardew|
|Buffon to play on for Italy as Di Biagio calls up uncapped duo|
|Huddersfield Town 0 Crystal Palace 2: Tomkins and Milivojevic secure priceless win|
|Stockdale makes history as ruthless Ireland win Grand Slam|
|Stoke City 1 Everton 2: Tosun at the double after Adam´s early dismissal|
|Simeone insists Atletico can survive injury crisis|
|Ireland´s Stockdale breaks Six Nations single campaign try record against England|
|Leipzig out to halt Bayern celebrations at Red Bull Arena|
|NFL Draft 2018: Jets acquire number three overall pick from Colts|
|Board accepts responsibility for West Ham woes, Brady claims|
|In-form Eriksen hopes he hasn´t hit Tottenham ceiling|
|Roma boss Di Francesco happy with Messi, Barca challenge|
|Bangladesh warned over ´unacceptable´ Colombo behaviour|
|The directors know where to find me - Gattuso awaits Milan talks|
|Laidlaw breaks Italian hearts in Rome|