Weird how you come to that conclusion. Cultural hegemony comes to mind, which is important in analysis of anthropological and sociological studies, claims the exact opposite of this: that the lower-classes emulate and internalize the mores of the ruling class.
Anecdotally, I come from a low income family and witnessed first hand the dissonant beliefs my parents held, that materialistically and socially benefited the rich at our expense, personally, and as a class.
It comes as a real surprise that it is that obvious to you. Are you from outside the United States? Perhaps that may be true in a society that has a shred of class consciousness, but certainly not here.