He actually helped start a new age in advancements. I'd let things stay as they are as we're already living in this reality His influence as a leader and ability to take action is almost unheard of. He might be a piece of pooh, but killing him would have def changed our world in the present or future in advancements overall. Who's to say we wouldn't make things worse by altering an event? He was and is an undeniable influence of genius both negatively and in rapid advancements