Many aspects of our world function in that fashion: work, religion are just two prominent examples. But psychiatry makes claims as a science and, for me, lacks proof and at best (at best) must be classed amongst the Social Sciences. Work has been done on those who support psychiatry and accept it at its own justification, and each represents the higher and most powerful groups in society.
The history of psychiatry can best be understood as the legitimisation of a point of view with far less science involved than usually thought. Is Schizophrenia true? Maybe not!