I didn't want to mention the cost of feeding someone for 40 or 50 years, but imagine those funds could be used for good projects.
As about putting prisoners to work, some are working, but the right to work has to be earned. Those heavy guys, very dangerous most likely are not allowed.
Ya exactly all the resources used on them! They get free food. I don't know there just has to be other ways than just working? I know that some do work but i don't know lol there has to be ways worse than death and legal. sadly they can't be tortured or anything.