Yes, this is what one study said. While biologically-speaking even a single drop of alcohol is bad for your body, the return effect from it is socialization, fun (only in moderation). If there were no positive effects it wouldn't be used. In moderation it would be interesting to see the effects positive emotions have on the wellbeing.

However, that being said it is still the worst drug and it is easily abused. I work as a bartender at a hotspot in my city. The degeneration of the mind many people go through is utterly disgusting. I don't mind because they're not me though. But I do mind cleaning up after them in the toilets, or when they proceed to be shitty to those around them... or worse.

It goes the same as for any legal drug: Only use it when you consciously want to. Know when to stop. Drink a glass of water inbetween. And for the love of god don't make it an excuse to be an ass. If you lose yourself in it you're losing more than you get. Stopping to use any drug is a good thing.