I'd say that many americans live in that mass-market superficiality as a part of it...
I don't think they contribute much to make your country look better.
On the other hand, there is that almost rough, stalwart american frontier spirit that is really admirable.
It's still there in some people, hope it doesn't go away.
It gave the world a great many good things, most importantly the American revolution which resulted in modern democracy.
Besides all the bad things I say about America, there is actually a lot hidden in the background that is quite admirable.