Earlier quoted context omitted.
Actually it's more like going to your Dr appt and realizing they have a barista onsite... of course you're not going to tell the barista why you're going to the Dr, and the barista isn't going to know your full medical history, there is a pretty large separation of concerns there. Same applies to big companies. There are really big barriers up between services like there are between the Dr and the on site barista. To…
That may be true of doctors with coffee bars, but it is absolutely NOT true of Google. Google is an advertising company, period. All of the thousand things they do are for one purpose: to sell advertising based on getting better and better at knowing the customer and targeting ads you're likely to click on. Even if Google does say that some app is firewalled, the implied follow up is "...until customers stop caring"…
"Anything any company does is in the end goal to make money" is basically this argument. "Anything a university does is to get grants".
You're reducing the agency of people who work there and their personal objectives to nothing. Google has many different projects which aren't just about pushing ads . How are driverless cars selling ads? The cost of Google Fiber largely outweighs the advertising revenue. etc.