He reminds me of the Brain. http://www.youtube.com/watch?v=MHn0pBePN7I with Pinky as a cultist. Nah, just kidding...Brain's plans are far more complex!

You see, this is one of those moments where I wished we had more backstory on him. Or a more complex one. Something like - what if "The Guardian and the Traitor" is mostly (or at least a bit) propaganda? What if there's another side to the story?
Like his first intentions were not all "mwahahaha, moar power!".
Yes, yes, good guy gone bad is so cliché..but it's not like the rest of the current story isn't. Referring strictly to Miraak.