The trouble with politicians/PR people is that in essence, they become professional liars. In a world where what people think of you (image) is far more important than anything else (usually the dull truth), you're constantly toying with the truth and dissembling for your own advantage - they probably end up believing what they say when they say it. Marketing people are the same, though I'm still on the fence where music moguls - or what's left of them - are concerned.
