Folks with advanced degrees in things like math, physics, physical chemistry, ... Many types of doctors (ie non surgeons), possibly lawyers as people have said

Folks with advanced degrees in things like math, physics, physical chemistry, ... Many types of doctors (ie non surgeons), possibly lawyers as people have said that their schooling trains the mind rather than provides "courtroom practice". One can argue that advanced degrees in organic chemistry or biology is "hands on training", but those doing research in reaction mechanisms would probably beg to differ.