[the urban politician]

^ Exactly.

Silicon Valley isn't even a good comparison to the North Shore, etc because Silicon Valley isn't a suburb. It's its own city/metro at least by some measures and has its own massive wealth generators.

A better comparison would be some of the Long Island/Connecticut burbs of NYC along the MTA rail lines. I bet those have much more in common with the North/West suburban Metra commuter downtowns than anything in Silicon Valley. In other words, this is not an apples to apples comparison