It's worse than that; Pirsig reminds us that psychiatrists are literally thought police. From this perspective, psychology is a mechanism for justifying psychiatric abuses. After all, if psychology can show that minds exist, that there are normal and abnormal minds, that there are correct and incorrect modes of thought, then psychiatry has only to show that certain incorrect modes of thought form clustered disorders and syndromes. The resulting system can punish people for expressing anything which society doesn't like, from sexuality to politics to a desire not to be overworked.