If every city in the US was like Las Vegas, would the US have a different culture?

In other words… If every city allowed the same behaviors everywhere that are seen and experienced in Las Vegas, would the culture of the US change into one of complete self indulgence, and a the need to feed all of our addictions and excess… or do we do that nonetheless?!? Have we in the US become a society of self indulgence and narcissitic behaviors driven primarily by the diversity of our culture and the need to satisfy our desires? Can it get worse?!?