Tobacco doesn't affect your ability to drive safely, or make you aggressive like alcohol can.
In the 1950's, 90% of the male population smoked.
the stigma around weed stems from it being declared illegal, and it making you unfit for battle.
There is no "stigma" around tobacco, but at least we now acknowledge that it harms the health of people around the smoker, causes some people to have trouble breathing and that it can trigger heart-attacks.
Cannabis can have positive effects, but most people prone to psychoses or depressions are definitely better off without it