I get what you mean about the inconsistency. I can kind of understand that some alcohol in moderation is supposed to be good for you in some ways. Moderate red wine is supposed to be good for the heart, though any amount increases cancer risk. Ok so the jury's out...BUT.....
What about sunbathing and sunbeds? - as in lying out in the sun all day on a beach in Greece or going to a salon regularly? The amount of JW sun worshippers is unbelievable! I have read secular articles that say the cancer risk of lying in the sun is greater than the risk from smoking. Ok I'm a big hypocrite here. I have been the world's worst sun worshipper and my doctor tells me I should probably expect to get skin cancer as a result - but it always struck me as odd that I could deliberately put my health at great risk like that and no one would raise an eye brow - but have one cigarette and you'll get caught in a rugby scrum of elders pouncing on you and your congregation friends shaking their heads at how worldly and rebellious you are...
I hope that's not hijacking the thread. I think it's kind of on the same lines as the OP. But basically, I totally get where you're coming from...