Any big company, apple, wallmart, ford.. and on and on.

The universe of buying and selling clothing at the mall, food at the grocery store, goods at Walmart have the same level of separation in most cases.

I used to work for a publishing company. No other platform or vendor made us bend over backwards like Amazon. We had to give them the usual non-competitive list pricing that other vendors demand, but we also had to give them a massive, absolutely disproportional cut of the sale price, regardless of profit margin. There were launch date rights they demanded, massive periods of exclusivity for audiobooks in order not to be a second class citizen, total refusal to negotiate terms, etc.

We were not a small publishing house, top 10% by volume nationwide, and (mostly) not paperback trash either. You've probably seen our cookbooks. Didn't matter. They treated us exactly the same as they would an amateur author writing unedited self-pub romance novels. No regard for quality, rating, volume, or any other metric, all must bow before Bezos. Amazon takes such a chunk out of the publishing industry, it actually has a bit of a chilling effect, because you can't afford risk a flop with the tight margins Amazon affords, and you probably need Amazon.