Fair point. I mean, I'm a big fan of it in theory. Not so much in reality. It's still better than having no justice system.
I think our system is not the worst system available by any means. I just wish there was a bit more focus on impartiality and rehabilitation. I am not so sure why there is an obsession with punishment when data suggests it does not really deter people.
Look at Kissinger's peaceful unprosecuted death.