Somewhat related, I love this quote from Eliezer_Yudkowsky:

"Have you ever caught yourself saying something like, "I just don't understand how a PhD physicist can believe in astrology?" Well, if you literally don't understand, this indicates a problem with your model of human psychology. Perhaps you are indignant - you wish to express strong moral disapproval. But if you literally don't understand, then your indignation is stopping you from coming to terms with reality. It shouldn't be hard to imagine how a PhD physicist ends up believing in astrology. People compartmentalize, enough said."

http://lesswrong.com/lw/hs/think_like_reality/