Vengefulness. The natural desire for retribution is a deterrent for behavior that we consider wrong. Sure, you can steal, but if you get caught you'll pay. You can murder, but someone will be looking for you afterward. If your tribe murders members of another tribe, it's reasonable to expect retaliation.
I think it's our desire for revenge that created the justice system we have today in the US. It's far more about punishment than it is about rehabilitation.
I think it's our desire for revenge that created the justice system we have today in the US. It's far more about punishment than it is about rehabilitation.