One thing is that selling water from some place enables the source to be developed. E.g. enable better water treatment technology and eliminate losses. It may v

One thing is that selling water from some place enables the source to be developed. E.g. enable better water treatment technology and eliminate losses. It may very well actually improve availability of water. Sale of drinking water is not really much of a problem, anywhere; the amounts consumed by drinking are small compared to everything else, and the development of treatment capability may well offset them. Selling water in bottles is a problem because of the bottles (trash, materials, energy), but that is another thing. Supplying water to other uses (industry, agriculture) is a problem because the amounts are vastly bigger than with drinking water. To be honest, I trust the English Wikipedia here more than the German...