how does curleys wife show her power in chapter 4

"Candy tells her (Curly's wifr), that George doesn't want her bothering Lennie, and Lennie "answers" by telling her George is going to let him tend the rabbits. When Curley's wife provocatively says maybe she should get some rabbits, Crooks coldly tells her to leave. She lashes out at him, reminding him what a white woman can do to a black man. She tells him if she wanted to he'd be hanging from a tree in no time. Crooks draws into himself as she continues to insult him. Candy tries to stand up for him, but Curley's wife reminds him that no one would believe him anymore than they'd believe Crooks. Curley's wife doesn't have much power, but she has enough to intimidate these three. Candy thinks he hears noise outside, and Curley's wife leaves, afraid Curley will find her in here.