I don't need to fasten my seat belt, this makes perfect sense. The supply and demand of homes drives the prices, as well as some other factors, and this is simply what people who are paid a lot of money are willing to pay.
When good jobs of a certain industry are concentrated to such a small area of the country, "stop moving there" really isn't much of an option. We need to find a way to spread the jobs out a bit, because it should be obvious that the companies employing those professionals have no incentive to do so without outside intervention.
They're really not that concentrated. The idea that, if you're in a tech-related field, your life is effectively over if you don't move to the Bay area is complete nonsense.