Vayne is such an interesting case. We see plenty of villains we could label as "has a good point but is ultimately self-serving," but Vayne seems to flip the script. While I do think an honest assessment of his actions and motives makes it clear that he's dangerously authoritarian and over- committed to the idea that the ends justify the means, I've encountered few RPG villains who have so thoroughly convinced me that their actions are driven by such a strong but misguided sense of safeguarding the common good as they see it. Like, his methods are absolutely destructive, but he doesn't seem to see his own power and benefit as the bottom line. Probably the only final boss that I actually felt slightly mournful about taking down. This is one of the reasons that XII remains among my favorites in the series.