Are you sure about that? I think it's because they can't afford a proper medical mask, they are using a scarf or something similar [Especially keeping the story in mind that this machine is supposed to make napkins for poor women]. As you can see, one woman's back is facing the camera so she doesn't really need to wear a mask unless for cleanliness purpose.
While you are probably right about the true purpose of the scarves, I wouldn't be so quick to assume that the person not facing the camera is evidence of that.
If you don't want your face photographed, you'd better keep it covered the entire time a photographic journalist is on the property, not just when you know he's taking a picture.
