Now the above does not mean that we should let criminals go free or have them only serve short and pleasant retreats away from the rest of us. What is does mean is that we need to create confinement as a time during which we assist the guilty in changing the way they think and behave so that they are less likely to do damage to others when they are released. Ultimately we want them to behave in a civil manner. When we subordinate we are giving up the right to act out. This giving up, this loss, must be freely chosen, not imposed.
Civility means losing a chance to have one's emotional, wordy say, giving up impulse.
However, if we expect a person to be civil, they must be able to exercise delayed gratification. To exercise delayed gratification, they must see that gratification is likely down the road. They cannot delay. They cannot be civil. Therefore, we must do everything we can as a society to help instill in our citizenry the ability to be civil, the desire to delay, which means that we must ensure they have meaningful work and caring teachers.