The politician is very cunning. He can see the priests have lost their hold - at least on the younger generation. He has to find a substitute. The psychologist has come in handy, because he speaks a different language than the priest. He pretends that his psychology is a science.
Science always comes to an agreement.
When the truth is known about anything, the scientist is humble enough to drop his prejudices and accept it. It does not matter who has discovered it, what matters is that it has been discovered. But the psychologists are divided in so many schools - the same way as religion was divided in so many religions, so many subdivisions of religions, cults, creeds. The same is the situation now of psychology. But the psychologist does not bring God in, does not bring heaven and hell in.