Well I almost never have any kind of power ever xD but if I did I'd want to use if fairly and be fair to people. Its not in my nature to be a dictator of any sort, Im kind to people and want to help them, that's what I'd want to use power for.
My job entails being an authority figure for children. I try to set the best example I can through kindness and fairness. This isn't always easy, situations pop up all the time that test the integrity of what I try to promote in the classroom. Alternatively, there's the authoritarian approach, which I find to be unproductive, even lazy. It's easy for teachers to fall into that kind of role out of frustration. I understand, kids push buttons. It's good to set boundaries, but this must be done with love and patience if you want your students to genuinely respect you and develop positive social skills. Same can be said for parents and children, man and pet, boss and employee, etc.
More than anything I just worry about what I'm doing. Am I forgetting something? Could I be doing something more efficiently? Am I being fair? So I do try to be fair, but I don't know if I actually achieve that.
I don't ever come into any sort of power, but if I do, I'll most likely try to give it away? It might come off as selfish, or not, but I don't really like to be responsible for important things. I can't handle being in a powerful position, since all my life I've never had to be in such situations.
When was the last time I had any power? If I did, I would use it fairly in most cases, going into "dictator mode" only if someone gives me a hard time over something. The sadistic side of my particularly enjoys being evil and cruel to those who have wronged me.
Of course, if my power spreads to control of the world, any sense of humility with my power goes out the window. I just have to keep people liking me until then...
I tend to be cautious with power, but sadly, sometimes I can get a little cocky and mess up something. When someone offers me with a position of leadership I usually modestly decline, anyway, unless I know I can handle it.
Fairly, but I would dictate in a sense that I will delegate tasks to people (including myself) and set deadlines to get things done. Otherwise people under my lead would just be idling and people would take advantage of you and the system.