There is a term used to describe an alcoholic who functions with all daily activities. They are called functioning alcoholics. They can drink and function just as someone who doesn't drink. It's still a disease no matter how you term it imho.

A social drinker in my other opinion is one who drinks occasionally and does not abuse it. I hardly ever drink but I do on occasion, but never get wasted. Maybe a beer here and there. I grew up with alcoholics so my fear of becoming one helps me turn away. I also think to drink because everyone else is can become a problem. Saying no is OK. Many times you'll find me sipping a coke while others are drinking.