The last time I was there, I realized why most of the protests for economic reform and "the 1%" are so strong in the Bay Area: because it is so blatantly thrown in people's faces! The streets are filled with Porsches and Teslas driving by the many homeless people in SF everyday. Rent is absolutely absurd. Most big cities have this problem, but its especially pronounced in SF (probably moreso than everywhere but NYC).
I think the thing that probably makes it worse in SF is, as mentioned in the article, many people don't work in SF. I don't know of many companies in Chicago, NYC, or Dallas providing free transportation to their headquarters in the suburbs, people that live in those places usually work in there too.
I'm not sure what can be done about this; Google isn't moving their headquarters to SF (nor should they). At some point this issue is going to boil over and something will have to change.