World's Most Powerful Billionaires

Many wealthy candidates have used blind trusts to quell conflict of interest concerns, including the world's most powerful billionaire, Michael Bloomberg. As Mayor of New York City, Bloomberg lords over the media, finance and fashion capital of the U.S.--and arguably the world. Mayor Mike also owns 88% of news and data giant Bloomberg LP. Forbes estimates his fortune at $17.5 million.

Ever Again Trust Wall Street?

Consider Philip Eberlin, 56 years old, who runs a woodwork-restoration business in Chicago Heights, Ill. Trading hot stocks a decade ago, Mr. Eberlin got burned on picks like Krispy Kreme and Tyco. In 2007 he got back into stocks, only to take another hit.