for the guilty it's too easy
While I agree with you that it's all about revenge, I don't like that quoted line. Saying it's "too easy" means that the person should do "hard time", aka revenge. Our justice system should be about correction, rehabilitation, and protection:
- If someone judged guilty can somehow repay for their crimes, they should (i.e. you smash into a brick wall and destroy it with your car, you are required to help rebuild it with no or little pay)
- If someone judged guilty can be helped or rehabilitated to lead a life where they do not harm others, they should (drug addicts who commit crimes are a prime candidate for this)
- If someone judged guilty cannot be rehabilitated, they are kept in prison not as punishment for the guilt but as protection for society
In that third case, whatever the imprisoned does shouldn't matter. Give them a solitary confinement room with a shower and a TV and a decent bed and keep them there for the rest of their life; society is still safe. If there is some way to make them give back to society as a whole, such as rote work that isn't in high demand but still useful (for instance, having to sort through garbage to find recyclables), they should do that to keep what little pleasures they have (such as the TV).