That is the problem with all charity. In the end you are very likely to donate to the best sales men and not the cause where you do the most good per sat.

But then, how do you fix that? I occasionally give to people in the street. The other day a mother with her 1 year old, dirt poor but who knows? Do they rent out the kid to get more handouts. Does she give half her "earnings" to the thug at the corner who controls who may or may not beg on his street like they control who may ask for tips for not scratching cars that leave the parking spots?