I would say Castellano was a smart gangster. Just not smart enough.

He was involved in street business, or at least loan sharking. Then he was smart enough to infiltrate legitimate business, becoming a major player in the meat industry. If I remember correctly, after doing a bit of time for a dumb robbery as a kid, he only did a year for contempt throughout decades of being a criminal. That's smart. Then he made some major blunders as boss.

There was a commission meeting in 1989 too BTW. Chin & Mangano, Gotti & Gravano, Amuso & Casso.