Carlo to me exemplifies what a boss is. He stayed out of the limelight and out of prison. Never bought a big house or nice car like others. He was a genius. Even john gotti never complained about Carlo. Not even after he passed on Neil dellacroce for castellano. He was pissed at Paul not Carlo. That's the kind of respect a great boss(like Carlo)has to have and very few have ever had that respect.
I'm pretty sure Gotti was caught on a wiretap saying Carlo was a rat after he died of course