Assuming that there are collectors situated between those interested in aesthetics and those in ethnohistory is a fair concession; but why not also conceding that a mix of both also exist ?. Appreciating the elegance or mechanics of an object and, feeling the urge to search for its origin and people that made it ... and used it, are qualities not necessarily dissociable. Nothwidstanding from such point onwards there still is a vast territory for academics to exploit.
When i started gathering collectibles i had this impulse to buy a book that would contemplate every single piece i acquired. Maybe i felt i should build my own library ... and that would be a system.
And when it comes to terminology i would take it that, when people around me calls things in a westernized mode and i remind them their genuine name (when i know it), i don't think i do it because they are being destructive; it is i, who expects to be constructive