This results directly into degraded ecosystems because you basically use the land as a life-less substrate to produce your grapes and all the chemicals which are not degraded or bound to the grapes are ending in the soil.
That afterwards you do a lot a chemical work to convert the grapes into wine is another story.
Note that my salary is coming from both sides. I work as consultant to both the big agro companies and the ones doing food additives and fragrances.
Everybody on the line know very well the real cost of a $2 bottle of wine. But the buyers do not see that on the label only the money they have in the pocket or not.