"Do what you can, where you are, with what you have." I have no idea who said that but, Jeanette, I suspect they were speaking about you and thinking "Wow! She's doing a great thing!"

Some of us have small but important roles to play in the adventures of others but that doesn't mean our role isn't important or that we should assume responsibility for the whole thing. From what I can tell, JI is making an important contribution, as part of a much bigger picture. I don't think it's right to minimize it by asking a question like this. Missionaries should also get their shots, learn about the AO, pack extra underwear...

I don't think you're wrong about the importance of sanitation, etc., but I do think it's beyond the scope of JI's role in the project.