You know somebody is the real deal when even Franky calls him a pervert. These villain designs are getting more and more bizarre.

Flamingo is running quite a huge business. He's pretty lucky a blind admiral was sent to the island, so there's no risk of the world government seeing his fell deeds. You'd think the marines would do something after Smoker reports in Vergo's true alignment, though. But who knows, a shichibukai is still a pirate, even if a privateer, so maybe they'll just blame Vergo for failing the marines and consider Flamingo's part normal business from a pirate. After all, as soon as Flamingo told Caesar is working for him, the samurai admiral didn't give a shit anymore about that mass murderer either.