I think the two amount to the same thing, honestly. Integrity of character refers to the person, and integrity of the system refers to the society. Micro vs macro scale, ala Lord Of The Flies.

I was inspired to think of subversiveness as a virtue from a cyberpunk novel titled The Diamond Age: A Young Lady's Illustrated Primer by Neal Stephenson. The entire novel can even be seen as a description of how subversiveness is what allows for the best revolutions to succeed. It's also a kickass dystopian future story where technology allows for those at the bottom to do something about it.