It's funny how Hitler is winning by a very large margin.
Given that it's just "rank higher" - I think you have 2 reasons for this 1. People that think its funny and choose Hitler 2. People who compare Hitler to something like "Ferrari" or "Rome, Italy" and go "yeah he's had more impact (from my perspective)" In that same sense, Hitler is arguably one of the greatest leaders the world has ever seen. He was just a horrible person who did horrible things. I am (obviously) not…
(Also the history of Rome has definitely been more impactful than Hitler.)