A couple days ago I searched for a book by its name on Amazon & got something above the official result...an ad for the exact same book.
Provided Amazon blurs the performance data & charges entities for their pre-existing brand equity, they have plenty of latitude to show the same ads elsewhere where they are less relevant.
I sometimes think the point of the private label products is not to make lots of sales & not to profit in any way directly, but to force brand owners to give Amazon another tithing by forcing them to buy ads (additional features on their core item detail page, ads in the search results, paying to access the Vine review program which Amazon grants their own products free access to, etc.) in addition to the retailer markup, logistics & payment management fees, cost of fighting counterfeits across the platform, etc.
End game is just give your credit card to the AI machine,
just like Google wants:
"Simply provide up to 15 headlines and 4 description lines, and Google will do the rest. ... on average, advertisers who use Google’s machine learning to test multiple creative see up to 15 percent more clicks. ... Beyond maximize conversion value, you’ll also be able to select store visits or new customers as goals. Machine learning factors in the likelihood that a click will result in any of these outcomes and helps adjust bids accordingly."
Person searched for "nearest Best Buy address" and we charged you $8 for that click because our AI was almost certain they would visit your store!!!