User blog comment:JustSomeDude.../712 - The Implication/@comment-1595565-20130626193244/@comment-4899461-20130626222011

His diplomatic immunity is only as strong as how much people care about it. Someone like Luffy clearly gives zero fucks who is or what connections he has. Luffy's already punched one out before. Someone with the right kind of ambition, true ambition, will fight him. I bet Kaido is rather ambitious, and gives no fucks too. That's why Doflamingo fears him.

And the immunity is only as powerful as the people in the government who back it up. If harming a Noble summons an admiral, and you can beat the shit out of the admiral, why not punch the Noble? If you're a Yonko with a literal army of Zoan fruit users and numerous allies, why should you fear the World Government?

Doflamingo is powerful, yes. But the most powerful? No way. If he was powerful enough to be a Yonko, he'd be one by now.