Henry was speaking before defeat to Manchester United.
"When you give people a lot they get used to it and they just expect and demand and rightly so because when you're at a club like Arsenal people expect and want you to win and that's the way it is," Henry, who helped Arsenal avoid defeat in the league during the 2004-05 season, told the BBC's Football Focus.
"For me it's a no-brainer, the guy (Wenger) has changed Arsenal Football Club. Was Arsenal successful before? Yes they were, but in a different way. Now Arsenal is recognised for the type of football they play and that's all down to him."
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