SirP: I could spend the next few hours digging up charts of gains in literacy rates, infant mortality rates, life expectancies, etc. in scores of countries in the last 50 years and show how these came about through the assistance of NGO's. But frankly, you're not worth it. You wanna be that guy who is fashionably cyncial and dismissive about 'brown people countries', go right ahead. I'll be with the thousands of uncool, naive schmucks who spend their lives working in the belief that things can get better.
Yes, that's why I'm advocating instead spending those resources on urban renewal, housing, soup kitchens, and education, rather than wasting a massive portion of said resources carting supplies and labor across the goddamn world, to accomplish only the most trivial and ephemeral of benefits.
Friend of mine in Cameroon just got a water filtration system up and running at an orphanage today.
Total cost: about $35, built mostly out of local supplies. She even had enough left over to buy new mattresses.
Effects: The kids have clean drinking water, probably for the first time in their lives. I.e. less parasites, infections, deaths from dysentary, etc.
Wasted money?
How much did it cost for your friend to get there in the first place? How much labor went into setting it up? How much does it cost for that labor to keep living there? What were the
actual infection rates prior, and how much of a reduction will a single filtration system manage to cause?
In the end you're looking at far greater costs than you're trying to pass it off as, to accomplish a minor benefit for a very tiny number of people, who will still lead pretty shitty lives due to all the other problems that have absolutely nothing to do with potentially contaminated water.
As I said, it accomplishes nothing but giving you a false sense of satisfaction.