I used numbers I found online and elsewhere. I know people making 2x+ what I have for median salaries in all of these specialties and nobody that makes less than the numbers I posted. I seems odd to me, too. I think the key is to use the numbers as a comparison between the specialties, not necessarily as an absolute number of what you can expect to make as this varies significantly in most specialties. It may be that the area I live in pays better than most (I know it does), that people underreport their salary to surveys or that you only hear stories about high salaries that make these numbers look small.
Here are some examples of what some docs in my area are making:
Family 375k, occ med 450k, pathology 500k, ER 400k, radiology 850k, anesthesia 750k, derm 1.2 mil, ophthal 800k, ENT 800k, OB/Gyn 750k, spine surg 2 mil, interventional pain 700k, Ortho 1 mil, Cardiology 800k
There are not so many rich CEOs and large corporations around here so the docs are among the richest people in town and the cost of living is low.