Fidel Castro had a law degree and when he was young he joined the firm of Azpiazo, Castro and Resende. He didn't do very well in the practice. Castro was a young lawyer without any clients.
I can't help but wonder how history could have been different if only Castro had been a better lawyer. Or if he happened to get a big case or client. Would Fidel have been so hot for communism if he was sitting on a pile of money?