i disagree WIY, wealth (in money or other riches/luxuries) only amplifies the fact that Hashem is there to provide for everyone.
I think when you realize how billions in the world have nothing. How 6 million were sent to the gas chambers, how many kids are dying of disease every day in 2013, do you start to have questions of emunah
Bet when you get that contract on a huge business deal or get a new car you have tremendous hakaras hatov for Hashem