Quite honestly – and this might be a controversial opinion – but: people in prisons deserve humane and ethical treatment regardless of the reason why they’re in prison. Prisons should not torture and abuse inmates. Prisons should give inmates adequate health care. Prisons should provide opportunities for rehabilitation to inmates who are responsive to it. Prisons should not exploit the labor of their inmates. Prisons should not house minors with adults. etc. Torture and abuse aren’t stopping crime from happening, because they are crimes in themselves.