With regard to their Internet service products, their goal seem to be to monetize the user base effectively, while avoiding wasting funds on unnecessary developer time. To that end, many of their products seem to exist as short-term bets or "experiments", ostensibly to give users something great/interesting, but internally justified by the extra data or "research" those products will generate. See Google Voice (angle: voicemails help train Google Assistant), Inbox (angle: research on some email ideas for potential incorporation into GMail), etc.
Google's cultural fixation on decision-making based on data and statistics will bite them eventually. It may help them squeeze the market, but it won't help them care about other people.