It appears to me, Salmo, that what the "law" does is provide a means to hold some accountability for the lawless who would otherwise continue mayhem without consequence.

The effectiveness of jail time can be a deterrent after one expends enough of their life behind bars, I suppose. Monetary punishment is selective in its impact.....hurting the poor much more than the rich, but time behind bars provides an equal (or nearly so) learning experience.

You can't really believe that we don't need police to counteract survival of the fittest.