The wealth of America may not be the money held by the average population but the buying power and choices available to the average population. I just spent 5 months in the richest country in the Caribbean and the purchasing choices are limited in all but the largest cities. The largest cities still don't have selection of consumer products available in most of the USA. I understand that this doesn't buy happiness but it is eye opening. I never really understood this measure of consumerism before but it is clear to me now.