I think JD would rather elegantly make a point of not "touching" any of her money, just as he has refused to look her in the eyes. Clearly making the point he wants NOTHING, NOTHING, NOTHING to ever do with her again.
She has really destroyed her career, at least in mainstream big-budget (big-payroll) movies and exposed herself to any future rich partners as an unstable, vulgar, manipulative and violent grifter. She's an object of really base international ridicule. That's probably a much better punishment than having to play out money games with her.
He has established his truths and himself as a sensitive and wounded, flawed man who does have integrity, blinding wit, and charm. I think he has gained a substantial fan base and will be able to explore more interesting parts without ever having to do Pirates again.