Danzo fucked up everywhere he could. The only surprise is how everything is being manipulated by him, that Itachi is with a plan to kill Uchih, that Hanzo is lying about Akatsuki.
I thought it was Orochimaru who was the most terrible, but no, he was found worse, Payne, then it turned out Payne wasn't so bad, he even likes it after all the stories of this trio, and Orochimaru seems harmless. Then I thought Toby, but no, after revealing who Toby is, I also don't think he's the worst. Then Madara thought the creature was the most such, he even ruined the Obito, but even here there is no. There is no one worse than Danzo, the most vile scum, he messed up everywhere, ruined so many destinies, did so much, there is a plug in the barrel everywhere. Even after death, it really pisses me off!
The cowardly Danzo managed to mess up everywhere.