It is absolutely not a wonder why society's best, brightest, and most ethical seldom go into politics. What I do wonder (and worry) about is how that pyschologically affects a country in general. If it is politically unwise for members of either party to publicly support the theory of evolution or climate change, how will politicians ever fix education? When the best-educated are branded "elitists," how does that foster a desire in others to achieve excellence? When politicians offer non-apology apologies for clear ethical lapses, what moral message does that convey to the rest of us?
Here's a test: If the recent racy GQ spread of 24 year-old "Glee" actors is causing you more consternation than what I wrote in the preceding few sentences, then I think your priorities are messed-up.