The one that stood out to me most was Jean-Paul Sartre. Wouldn't it make sense for a philosopher to have a philosophy degree?

All of those people are in careers infamous for being oversaturated and almost impossible to make a living off of or went on to get graduate degrees in law.

Haha, of course Phil Jackson is on there! His nickname was the "Zen Master" and used to give his players books for gifts to influence their thinking.