The State actively deprived the rapist of their ability to act autonomously to care for themselves, so they are obligated to do so on their behalf. The State (typically) does not actively deprive an innocent person who can't find a job of their autonomy. (There are some arguable scenarios in which they do, however, such as excessive fines, but obligation to pay those are dependent on ability, and feeding ones-self supercedes that in most jurisdictions.)
> some people are disorganised, not very clever, etc. You can only claim laziness if we had like a right to a job no matter what.
It is ethical to care for those who are unable to care for themselves. It's not as clearly ethical to force someone else to care for those who are unable to care for themselves.