Considering how a number of the Conservatives (and, to be fair, some of the Libertarians as well) have been attacking Obama for his appointment of "smart" people, I get the impression that there are quite a few of them who don't value intelligence, and won't hesitate for a moment to try and attack them.

Arguing that we need someone "well-heeled" in politics seems maybe a bit far reaching. Being a politician is, in many ways, simply having the ability to get along with others. It's the kid on the playground who is willing to share his toys, while knowing which bullies are likely to steal them. People who are successful at their work and have advanced to high positions within their fields generally have already demonstrated those skills.