Chirs is not functional, he may have born as a "functional autist", but the lake of psychological attention and bad parenting in his life molded him into a insane man. But at least we can say that he has ambitions, he just don't understand how the world works, and he never gave up on any of his stupid dreams. So there is still some respect points there.
Dobbo in the other way had the talent (little, but still), the tools and the odds in his favor. And yet he sacrificed everything for his attitude, he never wanted to grown from any of his experiences, the girlfriend that he mistreated, the fans and friends he was a jerk with, and the several time she was proven wrong. Now he has no ambition but live with his parents making 100$ a month and cry about his made up disease asking for pity on twitter. Everything that Chirs couldn't do as a artist or person, Dobbo could, but he just gave up.
Also, Chirs can drive, Tom never cared to learn how