So you're kind of mocking the guy above but it's a real thing: the American criminal justice theory shifted towards retributive justice (where the point is to punish criminals) around the middle of last century. There are alternative models including reformative justice (where the point is to reform the offenders) and restorative justice (where the point is to try to undo or balance out the damage done by crimes).

There are many reform advocates that suggest things should shift more towards those latter two, but the current state is that the main point is to do something bad to someone who did something bad.