It's fine. Besides, you three could be using that money for other things, couldn't you? Or at least saving it for emergencies, in case someone gets hurt.

[None of them asked to be here, after all. Why shouldn't they milk this """generosity""" for all it's worth, if they're going to be forcibly held here against their will? If they don't need to worry about the basic necessities of survival, their money can go towards safety and comfort--or, if they're really unlucky, bail or bribes.]