Matt Taibbi provides a pretty simple argument why bankers are hated: Free money, credit amnesty, stupidity insurance, ungraduated taxes and getting out of jail free. Selected highlights: 

Ordinary people have to borrow their money at market rates. Lloyd Blankfein and Jamie Dimon get billions of dollars for free, from the Federal Reserve. They borrow at zero and lend the same money back to the government at two or three percent, a valuable public service otherwise known as “standing in the middle and taking a gigantic cut when the government decides to lend money to itself.”

Your average chimpanzee couldn’t fuck up that business plan, which makes it all the more incredible that most of the too-big-to-fail banks are nonetheless still functionally insolvent, and dependent upon bailouts and phony accounting to stay above water. Where do the protesters go to sign up for their interest-free billion-dollar loans?