I think Facebook gave app developers all of that data to grow their ecosystem at all costs. They've rescinded a lot of that data in recent years as they've achieved ubiquity. Unfortunately both Facebook and Google have achieved a mass surveillance system with their OAuth logins across the web and apps.

I agree that Google have a lot more data points and like Amazon are doing everything they can to invade physical space as well. LinkedNYC kiosks, Google Home and Toronto Waterfront projects are examples of making sure you're data is being collected 24/7.