From what I remember in the game, the Mist was what brought out the greed and bloodlust in people, and Kuja was behind the Lifa Tree. Up until she died, I thought Brahne was evil, (Plus I thought she was the main antagonist, and I thought to myself what kind of end boss fight will that make?) but as she lay dying on the beach, I realized that to Kuja, she was just as expendable as the Black Mages, and that her mind was being manipulated. I'm not ashamed, as a man, to say that I shed a tear for her in her last moments.