No one, not even the founding fathers, could foresee every issue we face today, I mean do you truly expect for everyone to get along? I know I don't, but when you live in a country that gives you so many freedoms, naturally not everyone is going to view things the same way you do, and people always take advantage and use their freedoms for their own profit. I'm sure greed was not their vision, but surely they wanted a wealthy country that could survive the sometimes agressive foreign countries?
Being the best doesn't come cheap, and unfortunatly greed and want is a con of money. But because money makes our world go round, I think our current state was inevitable.