It amazes me that people are willing to believe that a company whose product is completely closed is guarding their personal data at all costs... just because they say so. Google is an advertising company, yes. But the OS you use on the majority of the phones called "Android phones" has it's guts fully available for inspection (and I say this with some experience in the matter). Google tends to put their money where their mouth is when it comes to matters of a user's personal data.
Keep in mind that all companies are bound by law to help law enforcement until they get the balls to say no. All companies are going to do whatever it takes to make their investors happy. All companies are, by nature, a bit evil.
As for the health and copying of ideas thing: as a person who has had ideas and has worked to develop applications for people that have ideas AND money all at the same time, know this... ideas are like [use favorite body part here], everybody has one. A collection of API's for collecting health data? WOW! REVOLUTIONARY! NO ONE HAS EVER THOUGHT OF THAT BEFORE!!! (Hint: people have thought about these things before).
As a developer I can tell you that development cycles usually go on far longer than the rumors about the products they affect exist.
A final bit of fuel for this fire. The difference between Apple and Google is all about development style. Google has a very "try anything" approach with a short attention span. As much as I am an Android fanboy, this irks me to no end. Their projects, once they lose that cool factor, simply fall to the wayside. Apple is far more methodical. They seem to pick their markets, go full force, and expect (rightly, usually) that their reputation will mean sales regardless of whether the products are good, useful, or otherwise.
I have no doubts that many of all ideas have been proposed and at least reached early proof of concepts in both companies. The thing that has always pissed me off most is that Apple will have these ideas and then run to patent them so that no one can ever use them again. There were rumors or talks about Apple buying Tesla that I remember hearing some months (years?) back. Had that happened, Tesla would never have released the patents they hold for the quick charging technology. They did this to spur industry innovation. They did it as part of the open source philosophy, which makes the choice of Linux for their car's OS all the more understandable. This would've never happened at Apple.