One is a molester even at 21 and other was a little guy going through puberty and had a crush on a bitch.
Similar backstory? Sanji had an adopted dad a family to take care of him, Hiruzen was a bastard.
Naruto's dad was one of the genius of all time and his mother as well, the whole conflict of Sanji's focused around his family being a bastard power hungry
Go reread Naruto