Proper nouns on the Internet

While doing a little writing about traffic shaping and such things, it occurred to me that I don't know whether the name "Net Neutrality" actually qualifies as a proper noun. Many people treat it like a proper noun, capitalizing the first letter of each word, but there are also loads of people who don't. This inconsistency leaves me wondering whether it really should be a proper noun and some people are just being lax, or whether some people are just being overzealous with their capitalization. I've been hunting around to find out what exactly makes something a proper noun in English. According to the Wikipedia, a proper noun represents a unique entity. It then goes on to give examples like cities, the names of people, and specific physical things (like Bill of Rights, which may embody concepts, but has a physical manifestation all the same). But all of the things (not people, not cities, but things) mentioned are tangible. So, can movements and concepts be proper nouns? Net Neutrality isn't tangible. Is it allowed to be a proper noun? I'm thinking yes, given the capitalization of political ideologies and systems of thought. If Marxism and Liberal and Atheist can be proper nouns, surely so can Net Neutrality. I think, then, that I've answered my own question. Is Net Neutrality a proper noun? Yes.