Or, in a more realistic hypothetical world, however did NAP become the law, when it is in competition with various versions of SSOLWADNNAP?
Now this is something I can answer.
A (possibly quite small) group of people decide to make that their guiding principle. They allow all business to enter their little enclave, so long as the NAP is followed, and it prospers. More people move in, it prospers more, and it just snowballs. Because everyone who goes in knows that aggression is not an acceptable practice, and arbitration agreements are required to deal with the people there, it becomes a safe haven for all non-violent illegal activities. And as the VHS/Beta fight shows, once you have the sex industry on your side, it's all over but the shouting.