Mens perspective about other men is that you need to be rough naturally especially , that Curley was a boxer he is expected to be rough , but instead he present the opposite , he puts vaseline on his hand to keep it soft for his wife and especially , to prove other men that you don't need to be rough to be a man , he's trying to change that stereotype so he can escape violence , but it doesnt work and violence turns upon itself (especially when Lennie crushes Curleys hand)
Curley is be perceived as arrogant, violent and insecure,. He feels insecure around tall/large guys and