Vivienne. She's an elitist mage who is trying to play at being a noble and involve herself in the game, and how she looks down on everyone who doesn't fit into how she perceives the world or is outside the framework of what she wants to believe.
Like spirits and demons, she dismisses each and every spirit as a demon. She distances herself from them saying, and rightly so in most cases, that they are dangerous and corrupting influences.
This wouldn't be such a bad thing if she didn't flirt with danger and corrupting influences as part of her past time by playing the Game in Orlesian politics. Cassandra says it well at the ball. They treat espionage, bribery, blackmail, murder and using their servants as pawns as some form of grand amusing game of one-upping each other. Few thing has drawn as much blood as politics, nor is as corrupting because the very nature of the game requires you become corrupt and see people as useful tools and not as actual people with lives that are hurt or destroyed in the game, and that's the very thing Vivienne immerses herself in as her form of entertainment and way to build up her own personal power and influence.
The game requires knowing the nature of everyone around you, and that is something she refuses to learn the full truth of when it involves the Fade and Spirits because her perceptions have limits she cannot move beyond. As she is, she cannot move beyond herself.
And when she debated with Solas and said her consolidating power for herself helped all mages by perception, I merely rolled my eyes at that vain excuse. If that was true, the events of Asunder and the Mage Rebellion would not have happened nor would so many templars be so swing-happy when it comes to mages. All she did was raise her own standing, and I don't see any evidence that she used any of her considerable influence to improve the standing of all mages.