I'm not actually sure what the Nexus and Nexusposters could be written down as. It borders on an idealistic (in both the sense of being an ideal and being anti-materialistic) religion, but also shares the common pseudo-postmodern habit of rejecting the Good-Evil dichotomy in a selfish manner.
IMO Lawful versus Chaotic is actually a pretty poorly thought out concept as well. One would assume that Lawful means "upholding the law", yet laws are arbitrary social constructs, and some governments allow the leadership to completely ignore laws, so it's possible for them to behave in a chaotic manner while being Lawful. So then Lawful must mean willing self restraint, but if someone adopts a code that encourages civil disobedience while still attempting to restrain one's acts (Hi!) then does that make them Chaotically Lawful?
So that makes Terezi Pyrope Lawfully Chaotic and Friedrich Nietzsche Chaotically Lawful relevant: http://existentialcomics.com/comic/86 ). Hmm....and then we could probably do the same with Good and Evil, like how the Abrahamic God does horrifying things in the name of establishing the birth of Jesus Christ.