Here come the complaints that Google and Microsoft offer more storage for less money, from those that don't understand that Google and Microsoft use the data you store to index and sell you ads based on your data. Apple doesn't index your data in the same way so it's far from apples to apples. It's far more profitable for Google to give you free storage space and then data mine it than charge for it.
Google does not mine our Google Drive data, especially not for marketing. Source here. Of course, I cannot say how defiant they can be once a government agency asks them to part with user data.