America finds it acceptable to flaunt wealth in a few places: Vegas. LA. Miami. SV, some. New York, kind of. But what happens in Vegas stays in Vegas.
In day-to-day America, claimed frugality wins. Most Americans will tell you their house was a "deal" in a place with good schools. Our cars are huge because we drive long distances with large families. Our warehouse memberships are to gain purchasing power over toilet paper and peanut butter - not gulfstreams or penthouses.
Granted, as Tom Wolfe observed in another place, our plumbers now live better than most Roman emperors. But you don't want to see an America that actually internalizes wealth flaunting.
Here in Yankee-land, it is also frowned upon.