Not so sure.
I think it would be like last Tuesday ('06) when a good portion of solid Republicans stayed away from the polls out of demoralization and disgust.
Your point is a good one -- the ones who did the demoralizing were those in the GOP who betrayed conservative principles and positions. The ones who generated disgust were those in the GOP who hit on male interns and bloated themselves on pork.
Who's to blame for that? Seems pretty clear to me.
I'm a diehard Republican, and I got out to vote, and chased as many people as I could to the polls to vote Republican. But the average conservative American isn't terribly political, because most people who live conservative lives understand that politics is one of the lesser priorities of life -- behind family, work, church, community, hunting/fishing...
It is the job of politicians who want the votes of conservatives, who by definition don't care for anything to do with the government, to motivate and inspire them to get out and vote -- not demoralize, disgust, and discourage them.
That's what leadership means, and there wasn't quite enough of it in this last election cycle on the GOP side.