it has more to do with what ISN'T in your food than actual nutritional comparisons. The majority of people don't buy organic because it might have more vitamin c than conventional. The food debate doesn't begin or end with organic versus conventional. You really should educate yourself in the business before sounding like a simpleton day in and day out. Yes, it's a business. Yes, there are many ways to conduct business. Yes, there are more and more people every day who care about that business. Just like you mock Whole Foods, there are people mocking you for shopping at farmer's markets because it's the "in" thing to do...not because you give a crap. Hell, half the "farmers" I see at farmers markets anymore aren;t even real farmers, they pick up their produce down at the distribution center (probably the leftover stuff the local supermarket didn;t want or need) and sell it to "cool" people like you shoppig at farmers markets at a mark up.
...that's the advantage of a CSA. You actually see the farm, meet the farmers, and see what they're doing. It's a great model and we should all give serious consideration to supporting local organic farmers. What's more important than healthy food...?
In answer to your question of the last sentence...Maintaining the integrity of the ground it's grown in and most importantly the water supply that makes it all happen. The quality of the food would be a byproduct of the first two-with or without GMO's and, arguably, some herbicides/pesticides.