ever seen a Politician who had his Logic straight?

Yes, the system is full of nutters! Nurse Rachet was a narcissistic control freak who emasculated everyone around her. She is the metaphor of the "system" & how it seeks to control people's thoughts & actions (via news, music videos, fashion, & advert propaganda, etc.) to mind-bend everyone into obeying & conforming to the system. The system does not want you to think for yourself, question anything, or be an individualist, & labels you nutters if you do. It also makes people judgmental of others who are different from themselves or refuses to conform to societal norms.

You notice in the movie that everyone is CONFINED (by the system). One of the shocking things is that you later learn that everyone, except Murphy, can leave of their own volition but have been so brain-washed that they are terrified to leave or take any responsibility for themselves. They are totally dependent on the system for everything about their lives & have relinquished their right to make their own decisions -- even whether or not they get to watch a simple baseball game.

Keysey did a great job by comparing Murphy, (who was outwardly rebellious), with the Chief, who played deaf/mute, yet saw & heard everything; & was inwardly stronger & rebellious. He was the one who survived & escaped by keeping quiet & using wisdom to beat the system instead of using destructive, impulsive antics, like Murphy. The fact that the Chief was an American Indian also provided a good contrast between him & Murphy. Murphy was a con-man trying to con the system. The Chief was an impoverished under-dog who had never disobeyed the law & had been forcibly committed to the Asylum, id est, the system. (Here again, another great analogy in showing the system as an asylum; since an asylum is an institution per se´, with, or w/out any inmates.)

Tho the movie was great, the book was written from the Chief's point-of-view & gives a good look at how he was ripped from his family at a very early age & indoctrinated completely by the system. HE was the TRUE rebel, not Murphy. Murphy was just a self-centered low-life trying to get out of doing jail time.

The lobotomy of Murphy is a metaphor of total mind-control by the system when one does not conform; like in Orwell's book "1984." Both books are great examples of government or dictator control & how people are so gullible, easily duped, & controlled when the government intimidates them; entices them with free hand-outs; or promises to 'take care of them.'
Yeh, well, Hitler 'took care' of millions, didn't he? So it was, & so it shall be again in the not-so-distant future!