Cleanliness is Close to Godliness

There is at least one of these cleaning ladies on every single floor in every metro station in Medellín I've been to. As a result they are all completely immaculate. I mean, like, Singapore style clean. I'm not sure why this is necessary, and at first I thought it might be a jobs program sort of deal, but now I'm wondering if it's cultural. I had mentioned to Vadir that Mangue claimed "everyone keeps their house clean around here" while chiding me for my unkempt bed at breakfast, and he said there's a belief that cleanliness wards off poverty. Then again, there are certainly plenty of other places in the city which are not clean at all, which does seem to shed some doubt on my theory.