[richardbatty]

I agree that silicon valley technologists are not well informed about the problems of the poor (or other important problems) and too often use the rhetoric of doing good whilst not thinking carefully enough about how to actually do that.

But I don't think concentrating on local problems is the right solution given that there are much more important non-local problems to solve. Perhaps entrepreneurs should concentrate on profit and then donate what they earn. Alternatively, they could learn about important problems and partner with experts in those problems to avoid naively doing more harm than good.