Forgiveness is a broken concept. Just because you can be a better person later in life should not absolve you of bad things you did before. This isn't a call for everyone to carry grudges, but a call that we should stop trying to play this dumb "just keep pretending everything is always and will always be 'okay' in some way" ideology. People sometimes do bad things because they are bad people or do not care about others, and it's okay to not forgive that. People sometimes do bad things through no real fault of their own and it's okay to still not forgive that.
Now, it might be the case that the people profiting from the string and long punishments are so cynical and greedy that they started campaigning for longer, harsher sentences specifically for their own enrichment, but the people are buying it as purification and penance through pain. The prison industrial complex only works as a business because the people already want what's being sold to them.