I don't really get your point, all the above dont intentionally spread a sickness that effects whole communities, even drunken wife beaters don't shut whole communities down.
Yes, alcohol abuse is an insidious blight on mankind and is a major cause of hospital admissions, probably the most destructive thing in our society that the government allows. To be honest it destroys innocent as well as the drinkers life.
Smokers, unhealthy eaters, drug addicts really only destroy the person who is doing it, some drug addicts destroy innocent people's lives but not to the extent of alcohol.
Mountain bikers, well, yeah I agree they spread a sickness, but a good sickness.
Don't get me started on vegan farts though