Non-Aggression Principle for the win. You are totally right, Libertarianism is a lot about ethics, as well as the economy.
I have watched a few of Stefan Molyneux's videos, and I like them in contrast to Adam Kokesh's videos. Not that
I dislike Adam Kokesh; I actually enjoy his content. While Adam Kokesh is a very peaceful individual and does not do anything wrong, he does appear like a jerk- even if he is proving a point. Would you consider Ron Paul a "traditional character?"
I actually find the Non-Aggression Principle to be inaccurate both as a short hand and as a mode of ethics. Aggression is not the issue because self defense can be aggression as well. A more accurate term would be "The Non-Initiation of the Use of Force."
And the reason I love Stef so much is because he developed a series of logical proofs I find to be superior (as in actually capturing the idea trying to be conveyed) called Universally Preferable Behavior.
Mmmm, I consider Ron Paul closer to the embodiment of Libertarian.
I also consider people like Ayn Rand to be closer to him.
But when I think of the AnCap outlook (as an approach to ethics and how humans should relate to one another) mainly referring to Murray Rothbard and individuals who more closely build upon his work.