A chance to come clean from hypocrisy

Darrin Bell’s Candorville comic is very good at pointing out hypocrisy within both government and the populace at large.  This is this past Sunday’s comic.  Quite frankly, I’m not upset that politicians may chance their stance on issues over the years; I know I have, so I can’t begrudge them doing the same thing.  However, I think they’d gain a lot more credibility if they came out and admitted it.  Why don’t our representatives realize that this habit/tradition of never admitting you’ve ever been wrong (unless you’re REALLY busted, aka Weinergate, in which case you put on “the face” - http://imgur.com/gallery/vE6mW) makes them look ignorant and untrustworthy?  I respect anyone who says “I don’t know, but I’ll get back to you” or even “over the years I’ve changed my viewpoint” a lot more than someone who attempts to deflect a question or push it away with vague answers.