You don't need to trust them. They're all very predictable. They will always do whatever makes them the most money in the long term while nominally being able to defend all their actions in court. There is a theoretical dial with "ignore all laws" on one end, and "follow the letter and spirit of every law" on the other. Every big company wiggles the dial around in the middle until it finds a place where they're confident they won't lose more money than they make from lawsuits.