Why aren't public shaming a form of punishment for out legal system?

[The Ghost of RubangB]

Galaki said:
Well, chopping the hands off is maybe a bit too much.

However, I wouldn't mind pedophiles getting their reproductive organ chopped off.

We've tried that.  It doesn't stop them.  Rape is about power, not about physical/sexual stimulation.  Men without balls, men without penises, and even women have raped other people with things other than genitals.