Its never competency and focus. Individual influence averages out, its the system that creates the result at scale.
To some extent higher per-student fees are expected in certain areas, most countries with heavily funded education aren't facing the same issues of rural population density. There's a lot of overhead costs to run so many schools.
Then state policies and regulatory capture is the other side of course, all schools need X teaching aid from Y company for some obscene markup...
Rural population density isn't a real problem for education. Some rural school districts have to run longer bus routes to service their students but those aren't particularly expensive.
To some extent higher per-student fees are expected in certain areas, most countries with heavily funded education aren't facing the same issues of rural population density. There's a lot of overhead costs to run so many schools.
Then state policies and regulatory capture is the other side of course, all schools need X teaching aid from Y company for some obscene markup...