$5000/month isn't really "fuck you" money, take home or otherwise, is it? It's good money, but not, "pay a guy full time wages to do essentially nothing" money. If there was an extra zero at the end of her salary, I'd just accept that she's an eccentric rich person, but instead she's upper-middle class and more reckless than eccentric. If she's so essential to her company, and she or her company can offer so many contracts to headhunt the MC, I'd think she'd be making a lot more money anyway.
EDIT: Okay, reading through the other comments, she makes the equivalent of a six figure salary, which makes this seem more reasonable. Still unrealistic, but a little less so.
@Tearsax But that 300k he makes is salary, not take home, so it doesn't include insurance/taxes.