The reasoning behind this sentencing is that Ethan didn't know any better because he was, according to his psychologist G. Dick Miller, the victim of 'affluenza,' an anti-social disease created by parents who believe that their 'wealth bought privilege and there was no rational link between behavior and consequences.' What is ironic here is that he is still not being held responsible for his behavior by a court which should be punishing him. Instead, he's being sent to a country club where he'll be able to wank off in the privacy of his own luxury suite.
Currently, Ethan is facing numerous lawsuits as a result of the wrongful deaths of four people and well he should. I wonder if a victim of poverty could get a similar exemption from punishment. What are the chances?