Why Washington is closer to Wall Street than Main Street. The median net worth of an American family is $120,000. The median net worth of a member of Congress is $912,000. The odds of an 'ordinary person' being a millionaire are 1 in 22. The odds of a Congressperson being a millionaire are nearly 1 in 2. There is a substantial disparity in the likelihood of an ordinary person vs. a Congressperson being a millionaire.