* It made a lot of coddled high-energy employees continue to feel valued and engaged and not jump to a competitor.
* It forced users to unify accounts making cookie joining and user data from different segments much more universally accessible to ads.
* It brought design uniformity to G on the web, which is an important to contrast the Google brand with the otherwise fragmented Android space.
* Lasting revenue and user data from Google Photos and Drive.
Google plus was Google doing what it does best: solving Google problems. It never had a chance as a product, but they didn’t need for it to win. They needed to re-consolidate data input to Ads and defend against a talent drain.