My gut feeling is the ripple effects in the local economy is huge. Never mind that this product could probably be produced with less effort at a centralized location - initiatives like these work by both providing a slightly cheaper product and enabling poor people to participate in secondary or tertiary industries.
So in a sense this is an education project on multiple fronts as well. Not just about hygiene and taboos, but also about economics. It's a brilliant illustration that increases in wealth, even from a modest starting point, have large effect. It would be really cool to see this phenomenon studied closer.
World poverty is really just like the Great Depression on a global scale: Lots of quite healthy and able humans which are for some reason (economics, lack of education, lack of communication) unable to participate in global wealth creation. Anything that helps alleviate this problem is a big bonus for humanity.