More likely if factory workers got better wages then prices of goods would go up, demand would go down, and some factory workers would no longer be needed. Amazon doesn't have the luxury of deciding it doesn't want to create value for it's shareholders, and I'm speculating widely, but I'm guessing the marketplace (B2C) aspect of the business is probably operating on much slimmer margins than the cloud aspect (B2B). If they were to subsidize the marketplace with cloud profits, it would be anti-competitive. They would be operating at a loss which would prevent competitors from being profitable and competitive.