Plenty of the "Amazon's Choice" flags are...a little deceptive. Maybe not deceptive in a conventional sense, but say you see a product in the search results on Amazon and one has that flag. You click on it, because hey.
Then you notice the keywords attached to "Amazon's Choice". Oftentimes, they're strange and esoteric. Oftentimes, that flag is put on what appears to be a random off-brand item sitting right next to a much, much better product more deserving of that "Choice" insignia.
From what I've seen I'm guessing the amazon's choice tag is arbitrary and generated by some algorithm that simply matches up common search terms to the most-bought item. When it's something simple and common like "wireless mouse" it's probably alright. When it's a bit more esoteric like "male displayport socket soldered connector" or some other hopeless attempt to optimize search results and filter out noise, you get strange things.
Then you notice the keywords attached to "Amazon's Choice". Oftentimes, they're strange and esoteric. Oftentimes, that flag is put on what appears to be a random off-brand item sitting right next to a much, much better product more deserving of that "Choice" insignia.