Autism and sociopathy can coexist in the same person. That said, a sociopath is a person nearly incapable of making moral choices, and autism doesn't require this. There are plenty of autistic people who are kind and generous and actually contribute to society, like Temple Grandin.
It is not obligatory for an autist to be a repulsive, self-indulgent, disgusting creature that rapes its mom and has never done anything beneficial for anyone. It's too bad Chris wasn't bullied even more than he was. He should have been curb-stomped sometime in childhood.