A very popular series of the time was 'Marcus Welby' where the all wise, all knowing doctor educated his patients out of their pride, prejudice, and folly in resisting his counsel. The doctor is wise. The doctor is all knowing. The doctor is only here to help.
1971, and indeed, the era of the Warren Court represented a high water mark of the notion that we can have a perfect society if we just turn loose experts and therapists guided by the social sciences on our problems. The intelligentsia then were absolutely certain of the ability of the social sciences to rehabilitate all criminals, to end poverty, to end racial inequality, to make a perfect land. All we had to do was use the tools of the social sciences to fix the 'root causes'.
This film was a marvelous criticism of that zeitgeist. Dr Cook is the ultimate therapist. He is only there to help.