Amazon has a worked hard to develop a reputation of being pro-consumer. And yes they will eat consumer facing errors. I have not heard the same reputation made about vendors, and in fact I've heard quite a few horror story rumors about how they treat vendors. And these complaints (vague as they are) seem to focus on Amazon passing the cost of their customer obsession to their vendors.

But yes, I expect if Amazon accidentally sold me an item for 1% of its actual value due to a typo they will honor it. I expect if they send me the wrong item they'll make it right. As a consumer, I'm not worried about them fixing any errors in their favor and ignoring any errors in my favor.

I just don't expect them to treat their vendors the same way.