He’s in that range where he’s making good money (low single digit millions?) pretty much all paid in salary and getting clobbered on taxes.
The seriously wealthy cronies (Buffet, Google guys, hedge fund guys, etc) have a lot of tax minimizing strategies.
http://www.celebritynetworth.com/richest-celebrities/richest-comedians/bill-maher-net-worth/
This says he’s worth $23 million.