But how is it relevant to corporate policies if the people are nice? Google is a corporation that's making money by selling ads and those ads are targeted based on user's data.

No matter how good the Google employes, the incentives are perverse and will twist Google's decision in favor of eroding customer privacy even more. See Schmidt's "privacy is dead" quote. Privacy is not dead yet, but the likes of Facebook and Google are trying really hard to kill it because there's more money for them if they do.