One Flew Over The Cuckoo's Nest

What is the social commentary going on in One Flew Over the Cuckoo's Nest?

I think, at least two: one, people in mental health institutions are not the worst off person in the bank, in terms of mental health. Secondly, there is clearly a criticism of the mental health institutions, too: look how many, including Jack Nicholson, are treated unfairly.