With Topsort’s relevance, a product that’s not relevant according to your platform’s logic, can not win the auction and show up as sponsored listings. In other words, a “Bluetooth speaker” won’t appear among the sponsored listings when a user searches for “gaming laptops” no matter how high they bid.
Nobody likes to see a “bluetooth speaker” when they search for “gaming laptops”, or see a promoted restaurant doesn’t serve in their area! It’s bad for user and seller ad experience. An ad paltform without high-quality built-in relevance will ruin your marketplace dynamics.