The Mafia may also have shorter horizon:
- Fantanyl 'customers' have munch higher risk of sudden-death
and then stop being customers.
- Fentanyl is a much more debilitating drug than heroin and much cheaper.
So Fentanyl customers are less able to gather the money for the next fix, and don't need as much (less revenue).
Also if the family has some addicted to “normal” drugs it’s acceptable; but if they get fentanyl from you and die the next mafia family reunion will be spicy.
More than simply being alive, they want customers who can stay employed and so continue to pay higher prices over a greater number of years. Cocaine and pot are horrible but their users can maintain a working life for years or decades, making them more profitable drugs in the long term.
The slope of addictive drugs with negative side effects starts with alcohol, then comes nicotine, pot, cocaine, crack, fentinal .... and then all the really exotic modern stuff. It is a spectrum. Some argue that there are upsides, and there are certainly uses for all these drugs, but no sane doctor would say they have no downsides, that unrestrained use is ever a good thing.
Alcohol has greater negative side effects than pot, and nicotine is more addictive than cocaine or pot. I’m not sure what you mean by “exotic modern stuff,” but if it includes hallucinogens (what people usually mean by modern/exotic drugs) then they’re not really addictive at all.
I ask because the scale reads more like a morality scale than anything based on actual negative effects, either in the individual or society.
Cocaine (in crack form) was found to be the third most harmful recreational drug overall, after alcohol and heroin. It also caused the most direct harm to users out of all drugs. Cannabis, not so much, mid-table. Non-crack cocaine was somewhere between the two.
"The Mafia" is... many different things.
From self-defense post-war southern-italian village organisations to pure-evil predatory psycho-clans, to anything in between.