Why is it so important to distinguish the workaday "broadside hacks" from other working people as creators of song texts?

Is it because the hack-work is unfaithful to the lives of non-hacks?

Evidently the non-hacks didn't think so, since, whatever the proportion, they sang whatever broadside ballads appealed to them.

I.e., had the "ring of truth," or at least the virtue of humor.

Isn't the penchant of some singers for the flowery neo-classical lyrics that we disdain an indication not of origin, but of changing tastes.