Please don't paint broad unsubstantiated strokes over all "non-developers and non-software engineers". You mention Facebook as an example that's not engineering focused but fail to mention that their equity structure is such that Mark Zuckerberg has control effectively through the votes his shares represent which means MZ, an engineer/hacker, is responsible for the decisions of the company.
Google is not a company whose mission it is to preserve people's privacy. They are out to solve search and organize information and in order to reach their goals, they have to find a way to attract the best talent in the world. This requires making tradeoffs in order to get the capital required to invest in changing the world in the way they think will be better.