@kettch: Didn't Steve Jobs have some issue with the medical establishment as well?
As to how to deal with educating the villages, one approach (bit late now?) would have been to build and fly some long range audio systems for the aid workers to use or drop some simple to use communication device from a drone. I'll admit that I'm not sure whether I'd have suggested these measures before the incident, atleast for some african village. Some areas are more well known for how they deal with strangers approaching the premises than others. (So the mistake here was assuming most areas would be friendly to strangers - poor judgement for areas with history of internal struggles etc)