Whilw unhealty lifestyles have their effects on society as a whole, economy especially, I think that smoking affects more than anything else. Obesity aside, if you eat a baconator from wendys you are the only one getting fat not the people in breathing proximity. And again while over eating and drug abuse affect society as a whole, smoking has more combined affects on society.
I dont think it is a bad idea from a moral standpoint and they can decide what they want to carry in the store. From a business stand point it doesn’t make much sense but they obviously value their morals more than the almighty dollar so here here.
edit: apparently this was already said, der der der