The question of “who to trust with my personal/private data” comes up a lot when you work for Google.
Caveats: I work for Google; you should consider my bias. I drunk the Kool-aid the day I accepted the job offer. These opinions are solely my own and do not reflect those of my employer.
Habits are more effective than laws. When you consider to whom you should entrust your data – Google, Apple, Facebook, Microsoft, governments, etc – ask yourself what that entity’s record is on respecting your privacy and acting ethically. Not just “within the bounds of the law” but “does the right thing, even when it is hard”.