IMO prisons should be about taking away peoples freedom, not about treating them like animals. But many people seem to be more concerned about their utility or

IMO prisons should be about taking away peoples freedom, not about treating them like animals. But many people seem to be more concerned about their utility or lack thereof, for example if having a death sentence for death convicts costs more than life in prison or vice versa. Or the idea of having them work as effectively slave labour.