I mean, their very first Leadership Principle is "Customer Obsession", so they do at least ostensibly want to be pro-consumer. Though yes, obviously those "principles" are only in service to making money.
https://www.amazon.jobs/content/en/our-workplace/leadership-...
The interests of customers and the business are aligned the vast majority of the time, but in those cases the phrase "pro-consumer" is meaningless because no choice had to be made. In the more unusual cases where they do not align, then that's a different matter.
The assumption everyone seems to have is that the customer is the average consumer purchasing items and services on Amazon’s website. That hasn’t been true in more than a decade.
The real customer are the third party sellers and those using Amazon platforms.