I think that Crooks is the most disadvantaged character because Steinbeck shows him struggling with both race and class. In this book, Crooks deals with more than other characters. Like the other ranch hands, social economic reality plays a central role in defining his existence. Like the other ranch hands, Crooks is hired to do a job and must deal with the fact that he lacks a sense of economic autonomy. However, unlike the other ranch hands, being a person of colour in this setting causes doors to be closed, opportunities to be denied. Crooks discussion with Lennie reveals how he is afraid to dream because he cannot do things that white people do. Steinbeck is making the argument that a person of colour in this setting cannot afford to have the same dreams as others. The cruelty of this is undercut when Curley's wife reminds him of his place in the world, and with a stunning bluntness, he reminds Candy that he wishes to have no part in such a dream, going back to the isolation of his own room and world.
She turned on him in scorn."Listen, Nigger," she said. "You know what I can do to you if you open your trap?.” "Well, you keep your place then, Nigger. I could get you strung up on a tree so easy it ain't even funny." Since Curley’s wife doesn’t want Crook on the ranch she uses harsh words to describe him.