FF6 "Choose your own Adventure" style

I just had an idea, and I'm not sure how feasible it would be, nor how much it would affect the storyline at this point, but I wonder if one could have a reputation stat, that starts at 128 at the beginning of the game, and goes up or down based on the decisions you make. Based on reputation, you could have a couple different choices, such as joining Kefka's army at points if your reputation is below 30 or something like that.