What does Tom's behaviour relate about his character?

Tom is a racist misogynist loudmouth. A brutal, hulking man, Tom Buchanan is a former Yale football player who, like Daisy, comes from an immensely wealthy Midwestern family. His racism and sexism are symptomatic of his deep insecurity about his elevated social position. Tom is a vicious bully, physically menacing both his wife and his mistress. He is a thoroughgoing hypocrite as well: though he condemns his wife for her infidelity, he has no qualms about carrying on an affair himself.