Nah, I would not jump at the chance to be the world's most intelligent person.
It sounds too isolating and I would hate to feel as though I was a know it all because I would probably find it quite boring to be a know it all
I might choose to be the world's funniest person though, I would still require a fair level of intelligence for that role and I would make people laugh and smile and feel more connected to their humanity and each other.