[RestlessMind]

While I don't doubt your personal integrity, I am sure a Google or Facebook employee would claim the same. After a while, organizational incentives start nudging you in a direction optimal for the company and not necessarily optimal for the user. It starts in slow imperceptible increments and before you know, your product is ad-infested sub-optimal UX.

[ctvo]

Except ads aren't Amazon's primary business or revenue stream. They're incentivized to do exactly what the OP stated.

[RestlessMind]

Or so one would think. But you can try for yourself and see how ad-infested Amazon has become.

To throw a few random examples, I just tried (from Mac / Chrome / Incognito / Signed-out mode), I searched for "sensodyne toothpase". Entire page is full of ads and I have to do a full scroll to see organic non-ads results. Same for "biodegradable trash bags". Almost the same situation for "qtips" though there were 2 partial images of organic search results. Its almost as if I am searching on Google (and no, thats not a compliment).