> MCDA modelling showed that heroin, crack cocaine, and metamfetamine were the most harmful drugs to individuals (part scores 34, 37, and 32, respectively), whereas alcohol, heroin, and crack cocaine were the most harmful to others (46, 21, and 17, respectively). Overall, alcohol was the most harmful drug (overall harm score 72), with heroin (55) and crack cocaine (54) in second and third places.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
Of the myriad drugs I've taken, alcohol is the least deserving of ready availability IMO. I suspect that if it were invented post 1950, and not so ancient and ingrained in our culture, there's no way we would let people buy the stuff.
Two things don't need to be equally strong or powerful to each get the job done.