You are right; there are still many good people and companies in Silicon Valley. Unfortunately the Philip Morrises of Silicon Valley have outsized influence since they control major social media platforms, Web infrastructure and standards, advertising networks, cloud computing platforms, and other essential tech infrastructure. Locally, they are also large employers in the Bay Area, and due to the housing crunch it is very difficult for non-“Philip Morris” workers, even in tech, to compete for housing (not every software engineer makes $200k+ in salary and gets RSU grants), which is pushing some of them out the Valley, helping make the Valley even more of a “Philip Morris” shop.