Right, and there are various startups in and out of Silicon Valley working on humanitarian projects. The funding model is quite different, based mostly on grant

Right, and there are various startups in and out of Silicon Valley working on humanitarian projects. The funding model is quite different, based mostly on grants. That kind of funding is even more fickle than VC money, and nobody expects to get rich. The people I know in that sector have no problem recruiting talent if there's enough money to provide reasonably stable (but somewhat paltry) paychecks. Lots of people want to save the world, even geeks.