Google is building out some infrastructure around their Mountain View housing project, i.e. affordable housing available to the public, some parks, footpaths, bridges, etc, but definitely nothing like Rockefeller.

It's fairly incomprehensible to me - these companies are working with a truly staggering amount of money, do they think they've found the upper limit of "Bay Area Coolness Factor?" Imagine if they eradicated the draw of Austin or New York or Portland by pushing for such a good Caltrain system that living in Mountain View was functionally equivalent to living in San Francisco because the trains were so fast and ran all night... or even further south or east, stretching transit out to areas where one might actually be able to afford a house.