Happily, you can still blame Cox for something. He went as far out of his way as he could to enable the brokerage firms by harassing the small group of informed financial people who have been trying to tell the truth to the markets: the short sellers. They bet against the stock price of a company and so have always had a bad reputation with the public. But in this case, they are the closest thing we have to heroes.
A man named David Einhorn is a case study. He runs a hedge fund called Greenlight Capital, which sells short some stocks and buys others. That is, he doesn't just bet against companies but for them, too.
Still, for some time now, he's been standing up in front of large audiences, announcing that he was short Lehman Brothers stock, and then explaining in great detail its dubious accounting practices. The SEC responded by demanding to see his firm's e- mail, hinting darkly that he was part of some conspiracy to drive Lehman Brothers out of business, and generally making him feel that he'd pay a price for telling the truth.
I have a notion that we need some way of regulating the regulators, but I have no idea what it would be.
Link thanks to Robin Hanson.