Yers, Profaci was greedy. And, the Gallo brothers humiliated him by kidnapping his hierarchy and making him go to the Commission to free them. But, Bonanno wrecked his family with that stupid, born-to-fail plot with Magliocco to whack Gambino and Lucchese; and by staging his "kidnapping" and going on the lam for 19 months, splitting his family in a vicious internal war.
If you read wiretap transcripts of Stefano Magaddino, Sam Decavalcante and Raymond Patriarca, you can read it to ways....Either Joe Bonanno was the worst guy of all time or all these guys (the bosses) are trying very hard to CONVINCE there soldiers that Bonanno was a terrible guy. You'll also find made guys replying with great skepticism about there accusations. They give logical counter-arguments to what was going on.
End of the day, Lucchese, Gambino and Magaddino allied themselves to take the power position in the Commission. Magaddino lost control of his own Family and Lucchese died. Gambino became to defacto Capo Di Tutti Capi. A position Bonanno was trying to maneuver into. If that heroin case with Galante never happened, he would've been primed for it.