i think it has to do with how societies look at alcohol and gambling. if you think about it, the maximum damage that someone who is addicted to gambling can do to their life is much more than someone who is addicted to alcohol. so with alcohol the most you can do is get carried away, but eventually your life goes back to normal. that's why alcohol is much more innocent than gambling. someone who starts gambling can have a very bad impact on their daily life, their finances and everything else. irreversible financial damage is definitely worse than walking around drunk one night. so i think that's why.