I can't think of any socially redeeming qualities for either.
Ideally alcohol and tobacco should be banned.
One has to remember, though, that in the US anyway, local, State and Federal governments are addicted to the money. (And from gambling.)
As far as all the criminals which would appear for violating the bans, a good way to cut down on crime statistics would be to eliminate all traffic controls including speed limits and stop lights, decriminalize robbery, burglary and theft, and make assault and battery civil matters.
It's a snake nest. What's right is clear, what's possible isn't so obvious.
I think.
Arf