User blog comment:Kaido King of the Beasts/Chapter 843: Thundering and Lightning, Very Very Frightening (He's Just a Rich Boy From a Rich Family)/@comment-166.181.80.46-20161020160952/@comment-30281369-20161020233823

There's hardly any "Naruto" in this chapter. Sasuke chose to forsake his friends, village, and bonds all for the sake of power to attain his goals which was revenge.

Unlike Sasuke, Sanji had absolutely no choice but to renounce his friendship with Luffy, Nami, and the rest of the Strawhats. If not, he'd risk their possible annihilation.

I'm sure if the vinsmoke royal family weren't present, Sanji would've gladly informed Luffy of his current situation.