He would have been a different man: 
He is a man guided by a moral code. He fights for the Clifford Danners’ of the world who have been exploited and left for dead. Had he gone to law school, he would have learned ethics from Prof. Gerrard who pretends to uphold the law when it comes to his own vested interest. As the IT guy in the basement said to him “he knew he did’nt go to law school as he is the only one who gave him respect”.
