I wouldn't be surprised if a lot of people who vote for Kennedy feel that way about him, too. After all, a great many of them are only voting for him because he keeps the gravy train running to Mass.
(how he's able to do that with the Republicans controlling all three Houses, I'm not entirely sure, though...)
And if Bills were limited to the subject expressed in the title (no pork amendments!) - then politicians couldn't vote for pork - so there would be no incentive for the people of Massachusetts to re-elect the fat drunken "Swimmer" Kennedy et al.