[slurry]

I have a couple of older relatives who were gentleman's-C athlete types at an Ivy League school. Majored in History or something. Both very successful in banking.

Some things they have in common are: they're both very slow to form an opinion, seldom have an opinion on anything they don't need to have an opinion about, very interested to hear new evidence or arguments about something they do have an interest in, and very gracious about letting you down gently if they do have to win an argument (even if they can be colossal dicks in many other respects). Uninformed people think they're dumb.

tl;dr Roger Sterling is the smartest person on Mad Men.