The legal system ought to burn them all to death. After a fair trial of course. After that they get to burn in Hell. But maybe they'll save us some tax dollars and kill themselves like Epstein supposedly did.
But it might help you to think of numbers as amounts mixed with actions. For example, you could think of a negative 4 as a 4 mixed with the act of subtraction. For another example: When you take 4 cookies, it is the same as giving negative 4 cookies.