I agree with you that he is the naysayer or "no" man of the team. He doesn't follow other people if he disagrees with them, and he is often right because he does have common sense. That's what happens to someone who flees to the freedom-loving America from a totalitarian regime, until they eventually realize that it's not that different here in the dog-eat-dog business world, sometimes.
The ability to go against the tide is required of a leader. I think because of this and because of his common sense, he is much more fit to be a leader than a follower.