Pyranoid of being whacked?
Maybe in the 1980s when bosses like Scarfo or Amuso can order to kill someone only for the suspect to be a rat.
Now because mob dont kill anymore so you can rat,made money with podcasts or books and walk in the old hoods without risk.
If a mobster dont have a son in the life or other reasons,it's unlikely that he'll accept long sentences and maybe get out after 20 years and find himself without money, not to mention that he risks being killed or injured in prison.