Probably, on balance, below average in the common sense department. They tend, like many theoreticians, to get their egos wrapped up in their theories. So I lack the normal sense of awe when I approach these authorities on what they clearly consider is their own turf, and some of them resent it. Perhaps I would resent it too, if one of them told me how to run an Embassy. Never mind, this subject is important and they should be challenged.
Biologists are in a similar boat, in that they also are a pretty specialized lot.
They are moving in on the anthropologists and other social scientists, approaching the subject of human behavior from the disciplines of genetics, and of behavioral patterns in other animals. There is some pretty heavy controversy raging these days, which boils down to the old nature vs. nurture issue. I cannot get too excited about this. It seems to me that if you look around and see how people relate to each other in various parts of the world, you conclude that there are some universal principles of human nature, but that various cultures stretch them pretty far in various directions, producing quite different results. Groups don't reproduce, after all.