If we are talking about the same person, he really used to be top 2-3% IQ back when he was young and at his peak. That still made him stupider than about 200 million people, which was great, actually, because he has always enjoyed the company of smarter people than he. Nowadays there are probably about 1 billion people who are smarter (and many of those post blogs and articles on the Internet), so he can feel his limits on a daily basis.
A good number of medical students and doctors used to be the best and brightest, back when their real wages were 3-4 times what they are now. They were never all very smart, because 1. we need more doctors than there are usually smart people WILLING to practice medicine (and that number decreases as society values doctors less and less, 2. it takes a certain stomach to deal with blood and other "yucky" organic stuff (which again decreases the pool), 3. many truly smart individuals are socially awkward (i.e. nerds) and hate dealing with other people, 4. medicine used to be and still somewhat is as much (if not more) about rote memorization as about rational thinking which makes 5. GRIT, and not IQ, the most important factor for anybody who wants to become a doctor, followed by social skills, not IQ (although, for outcomes, probably IQ is the most important by far). Hence 6. the truly smart will be more attracted to the exact sciences, not medicine, where they can shine with much less effort.
But most medical doctors (could) have never been rocket scientists, and anybody who says otherwise is too dumb to actually realize how dumb s/he is. Yes, we are above average as a group, which is NOT a big deal, given how dumb the average person (IQ of 100-ish) is indeed.
