Profaci was not a drug trafficker. He was the "olive-oil king". A multi millionaire. No need for him to go into drugs. He was extremely devoted to his businesses. There´s very little info on him which shows how low key he was. Did he use his connections/muscles in order for his businesses to flourish? Absolutely! Was he a murderer? Absolutely! But a drug trafficker he was not.
Capeci also seems to be convinced Profaci was involved in drugs. And Profaci being a multi-millionaire through legit business isn't a reason to assume he wasn't involved in the drug trade. It didn't stop him from being involved in many other crimes, up to and including murder.