Over the long term it's possible that maximizing shareholder value requires monetization of additional resources.
The approach of 'today, company X is known to make money via Y, so we can trust them with private data' only works until that data becomes valuable enough for the company to invest in extracting.
Monetizing data stored in AWS would destroy their credibility with corporations, who are much more proactive in protecting themselves (both legally and with their wallets) than consumers are.
