From yesterday's testimony before John McCain's committee, it appears that Jack Abramoff ripped the Choctaws for the purpose of funding secondary Republican organizations.
1. I imagine that a Democratic Abramoff would just put the money in his or her pocket. The Democrats just aren't that excited about themselves.
2. With all the money floating around Washington, Abramoff's rip-offs have to be just the tip of the iceberg. There's too much cash to not tempt people to steal it.