Ricca sponsored Dyno into the Mafia. Ricca liked DeStefano the way Vito Corleone liked Luca Brasi.
That's the only comparison that comes to mind.

DeStefano was a Juice Banker. He was a made guy with a crew.
His financial partners were Ricca & Giancana. They put up 50% of his Juice money. DeStefano put up the other 50%. HE WAS A HUGE earner.

Dyno had special privileges being a made in in the Taylor St. Crew and being direct with Mooney and Ricca. He could do anything he wanted in Chicago as long as it didn't directly interfere with another made guy.

After Mooney and Ricca were gone, it was too dangerous to keep him around for Auippa/Cerone. They were a little afraid of Dyno because he was crazy and could only be controlled by Ricca or Giancana.
DeStefano didn't respect Auippa, Cerone or Accardo.