Amazon.com as a store makes next to nothing as profit.
Who cares what he did to some diaper companies. Are consumers paying more or less because of amazon? Much less.
They basically run amazon.com for no profit and consumers get fantastic deals and cheaper products and more reliable service than ever before.
How much would you have to charge for same day delivery for that many products? Could you get close to Amazon? You would have to rip off you customers so badly just to stay alive.