After thinking about it for a while, I still stand by my original suggestion:
A major reason amongst the many that the pols know they can ignore you is that you’all don’t vote. It almost doesn’t matter which candidate you vote for, as you pointed out, but the fact is only the Nomenklatura vote.
Aside from the fact that the Tea Party is just Koch Industries under a different name, there’s a reason the pols are a little scared of them - the Tea Party’s misguided, uneducated members vote (for the candidate that they’re told to vote for, but they vote).