If someone is in prison, IE, in the care of the state, and unable to choose their own paths, the state is therefore responsible for that person's well-being. In other words, the state is morally mandated to give that person food, medical care, etc.
If you don't want inmates "receiving better coverage and health care than a law-abiding citizen", fucking get law-abiding citizens, you dicksneeze!
What happens if a given seat doesn't actually have primary competitors? Do we just assign someone by lottery?