Define engineer. An electrical, chemical, petroleum, etc. engineer with a Ph. D. and a few years work earns as a median salary about $80,000; much more possible if he is a consultant or establishes his own business.
Median salary for a pediatrician is about $120,000; an anaethesiologist about $260,000; medical researcher $100,000.

All of the above have very large highs depending on the enterprise of the individual.