There are many examples. Here is an obvious one - when Amazon stopped selling Apple TVs to punish Apple. Hard to see how this is good for consumers.
http://www.slate.com/blogs/moneybox/2015/10/01/amazon_blocks...
Re:Amazon Restaurants
by DavidAdams on Thursday December 15, 2016 @11:55PM
(#13191177)
If it convinced any Amazon customers to buy a Roku instead of an AppleTV, then it was most definitely good for the customer [rimshot].
Can you give some examples of times when Amazon HASN'T put the desires of the vast majority of customers first?