Yes, but it’s not about business model, it’s about trust. Both companies, Facebook and Google, built their business modeles around advertisers and have no other option than to sell your data. But, for some reason, 9 out of 10 engineers that I work with dislike Facebook and don’t trust them. They are willing to share work documents and emails with Google, but not Facebook.

That's only because Facebook is optional. They use Google for their email and documents because they need something for those things.

> They are willing to share work documents and emails with Google, but not Facebook.

Last time I checked, Facebook did not offer free personal and company e-mail and collaborative office suite.