Was there some level of assumption that Amazons search isn't going to favor Amazon to some degree? When I search on Wal-Mart's website, the top results are norm

Was there some level of assumption that Amazons search isn't going to favor Amazon to some degree? When I search on Wal-Mart's website, the top results are normally the wal-mart label, or they're at least on the first page. The value of Amazon to me, is similar to Steam. Amazon's influence of product reviews is more concerning to me, anyway.