NAP is one of the core concept of Ethics and Personality management. You beautifully described it already;

The idea is that all individuals are free to live as they want as long as they cause no harm or threat of harm to another individual or their property.

No doubt sanctions in the form of Rules & Regulations are their to account the human behavior, To bring solidarity within a society. I do believe Legislators do play their role functionally in NAP.

Moto is yelling at intolerance and giving a clear message

"Do no harm, but take no shit"

Thanks for discussing this concept in detail and in fact thanks to Peace Academy which is working to bring Peace and Harmony in the Community.

By the way @wwf and I had a detailed discussion upon this very topic in his one of previous posts.

Stay Blessed, Steem On!