If you were happy with having the below two facts laid out to us and move on, then sure.

1) Bucciarati has lackeys who will follow him because he's a swell guy, and.
2) Bucciarati / Jojo want the boss dead

I do care less for the other members of the squad, but explaining exactly what drives Bucciarati to overthrow his leader to date gives us insight.

Sure it doesn't change the character's actions. The only way it would is if he had a memory blank up until now, then suddenly remembered how badly he hates drugs. That would be stupid.