Very good point. Yet we are often shown a House who gets upset at others, patients' parents specifically, when they don't fulfill the duty that comes with their parental role, e.g. the parents in 'A Merry Little Christmas'. There are mixed messages being sent by the writers, and again, I believe that is because there is no basic consensus on House's morals. They all agree that he doesn't conform to social mores or standards, but his take on ethics seems to vary from writer to writer.