It's an insurance policy that you pay into, but that doesn't necessarily mean you're going to collect. You've almost presented this as an entitlement, and it's not an entitlement. It's something that's paid if you have fallen into a certain condition set out by the act; namely, that you're unable to work owing to circumstances that were out of your control.
There have to be consequences for making bad decisions. That's the way life is. There must be consequences, and this is a consequence of making a bad decision. You may think they're entitled to it, but I say they're not. They're not eligible, because they made that decision when they committed their crime.