Actions Speak Louder

Cheswick is trying to show us something very important in this section. He stood up to Big Nurse and McMurphy didnt support him. After that he was sent to the disturbed ward, he came back and told McMurphy that understood why he is compliant and drowned himself. Is he foreshadowing the fall of McMurphy? That the only way to live is to conform? Or is he just a martyr? who by definition is "a person who is put to death or endures great suffering on behalf of any belief, principle, or cause (a martyr to the cause of social justice)."