I don't get it, why wouldn't he just inform the villagers about the situation, the village chief doesn't have the power to stop him. And if they refuse to listen he can just leave and let she happens happen.
Japanese and Authority....
Shounen manga aimed at young kids. Can't have the MC directly oppose Authority. They might get Ideas....
So Plot requires downfall through Stupidity, to show the System Works, if you have Faith...
(Note that the manga scene is not unique in this.. Both the European and US comic scene up until roughly the late 80's / early '90s were heavily bound by
censorship Conventions regarding what could be shown to specific age groups..)