I disagree with this path, there is no guarantee, nor can there be, that the data will be deleted. It can be divided up and sold to others with no recourse. The hackers got their money, they are under no obligation to comply with th agreement, and there's no one can could enforce it.

Right, however it's not really true in practice and we have stats for it. Generally it's enough money to set them for life and there is some sort of "moral code" around it as well, the same thing that allow darkmarkets to run.