I've never been that kind of drinker, either, OP. My typical night would consist of 4-6 weak beers, and it wasn't even every night. Honestly, my bloodwork would always turn up looking pretty great, but I had a feeling inside like I was being controlled, especially when I tried to quit and realized I couldn't sleep or relax at all without it.
Mind you, I've drank until I was sick countless times, but it was never anything serious. It would happen about 3 times a year, maximum.
Everyone is different, but AA (or any type of recovery method) can still apply to those who aren't deep into the hole. The fear of falling into said hole means that you're just ahead of the curve, whether or not you relate to what the majority of people in said recovery group have experienced.
I like to see alcohol use and alcoholism as a simple spectrum - challenge any 'casual' drinker to a month without it and I bet you'll be able to challenge them on their failure to stop, too. Food for thought.