What are attitudes like to the less talented (especially in the magical/fantastical realms)? Are they treated with contempt or respected because they are "different"? What has led your main character to be the way they are? Have they learned from experience not to ill treat others because they have been on the receiving end of that kind of thing and understandably hated it?
What part, if any, does religion play in your fictional setting? I was watching a documentary about Margaret Beaufort (Henry VII's mother. Any fans of Richard III/the Wars of the Roses period of history will know of this lady). She was renowned for being very openly devout. In an era when practically everyone did believe, she was still renowned for this. That fact to me speaks volumes as I do sometimes wonder about any character that is prone to conspicuous displays of any kind. The thought keeps going through my head - what are they covering up that they need such a conspicuous display for? (It is my general experience that those who are genuine in their faith, and I speak from a Christian perspective, live their faith out or walk the talk, to use that wonderful Amercian phrase, and don't want to show off or be thought to be doing so).
So what is the main motivation behind your characters' behaviour(s)?