Walt left love behind halfway through the first season. Everything he does now is about satisfying his ego. He is definitely the villain of the show. The entire premise that Vince Gilligan came up with was what if we took the hero and turned him into the villain? How would people react? How long will it take for viewers to turn against him? Despite letting a young woman die, poisoning a child, ordering the death of a relatively innocent man, lying to his family, covering up the murder of a child, killing a man out of anger, and finally ordering the brutal murders of ten other men, some viewers are still rooting for Walt! Some still see him as the hero of the show! This would make for a fascinating sociology paper.