I feel like the Goddess of my own Universe but if I were running the larger things, I'd make people pay fines for being mean or intentionally hurting other people. The fines would be karmic. Like, old school "eye for an eye" stuff.
Try to prevent Gay people from being married? Your straight marriage immediately becomes void.
Make fun of someone for not wearing designer labels? You get a potato sack with the word "asshole" written across it to wear for the rest of your days. (or however long to learn the lesson)
I know it borders on Harrison Bergeron-esque systems of balance but my main goal would be to balance the power in the universe a little better.
Oh, and I'd make it illegal for people to be famous for being obnoxious idiots. (Goodbye Jersey Shore cast!)
Oh again, and I'd make it to where every time someone told a lie, a giant pus-filled boil would pop up on their forehead.