Mother Jones magazine has a list of ten people who have profited from the current financial crisis.
[John] Paulson is a hedge fund manager who has been ridiculously successful betting against banks and other entities that had exposure to the subprime crisis: In 2007, his funds were up $15 billion. In 2008, he didn’t do as well: His main fund rose 38 percent in a year when the S&P 500 fell almost 40 percent. His 2007 earnings were in the neighborhood of $3.7 billion. According to Forbes, while 656 billionaires lost money last year, Paulson was one of the 44 who added to their fortunes.
This is the peculiar thing about financial markets: if you know something bad is going to happen (you know, like the global collapse of the financial markets), you can either sound the alarm and save a lot of people a lot of grief or you can make a billion dollars.