Earlier quoted context omitted.
Amazon != AWS. As someone who has access to customer data in AWS, I'm very limited in what information I can access (to the point where it actively makes my job in Premium Support harder than it would be otherwise). I also have to provide a legitimate business reason for access to data. Not only is there an audit trail for what I do internally, but any calls I make to review customer data is published in the customer…
Given everything mentioned in your comment, I don't see how it implies that amazon can't cast a dragnet at some level you're not aware of.
How much brand damage and lost of business to AWS (their most profitable organization) would they lose if this were to leak? The more prevalent their use of this AWS customer data, the higher the chance it gets leaked.
Why do you think Amazon, one of the most logical and data driven companies, would make such a bad business decision?