>There is nothing stopping someone from creating a curated "quality" focused frontend that makes money on showing customers only high quality products and then making money on the affiliate referrals for the curation. If this was in high demand I think you'd see these curated stores in the wild. I've not seen one though and since I can use tools like fakespot to help determine the quality of the reviews.
Does anyone actually do that though?
Most retail stores that do a lot of promise on "higher quality things" in my experience are just looking for higher margins and can't help but tack on more to the price for marginally better goods.
And I don't know of any site that really tries to do what you describe, thus I am not sure that they would even if there was "demand" / they would even know.