They want a majority, so they can get their precious committee chairmanships and cushy sinecures after they retire. Except for the real true believers, of which there are few, and even fewer incumbents.
There will be a few more true believers than before in this Congress, but they won't be driving the bus. You hit the nail on the head. It's about power, wealth, and comfort--the best lifestyle for you and for your circle, as long as you can keep it, with good high-paying options for after you move on from "public service." It's why most of them aren't really concerned about actually repealing Obama's health care plan unless failing to do so endangers their majority. Also why tax cuts take precedence over actually doing something about the deficit. Wealthy people notice if the tax rates change, but people are willing to turn a blind eye to the deficit when they get into the voting booth.
