Hating Wall Street is an American tradition that dates back even to the days when Thomas Jefferson cursed that money lover Alexander Hamilton. And for centuries, the complaints about it have largely stayed the same: 'It does nothing! It creates chaos! It's a parasite that sucks hardworking Americans dry!'
If the American government can't stand behind the dollar, the world's benchmark currency, then the global financial system will very likely enter a new era in which there is much less trade and much less economic growth. It would be, by most accounts, the largest self-imposed financial disaster in history.
'Reinventing the Bazaar,' by John McMillan, is a great and fun introduction to the wild variety and importance of markets throughout history and around the world. I finally understood how a Middle Eastern souk actually works economically and how to compare that to modern-day telecom-spectrum auctions. I love that book.
The America that I think most Americans would want, most economists on the right or left would want, is one in which a smart, ambitious, hardworking person without a huge amount of resources has a pretty good shot, in the end, of beating out a less smart, less ambitious, less hardworking rich person.