Many folks think that there is already way too much money in politics, particularly to those politicians who are incumbent. Consequently, if the MPAA/RIAA stop buying our politicians out from under us, maybe we'll get them to pay attention to us again.
That's really where the MPAA should be spending its money anyhow: convincing individual voters that piracy is hurting their business and what the effects will be. Honestly, I do think we need some modifications to the copyright regime in this country (US). I just want the MPAA/RIAA to stop bypassing the voters and appealing to the folks we elected to represent our interests.
If the MPAA/RIAA stop funding elections, that means victory for the rest of us.