> located in a region of the US that is already far-left.

Silicon Valley has a fairly substantial right-libertarian and just-plain libertarian segment, which, in the usual way multidimensional politics are smushed into the US two-party, one-axis system, fall out as "conservative", (and quite a lot of really hard to classify on a liberal-conservative axis types that are extremely socially liberal, but economically center-to-right-libertarian (that is, outside of culture-war kind of issues, they tend to agree more with the center-to-right types on the function of government, as well as leaning libertarian on its preferred degree and means of involvement in fulfilling that function); these don't fit well as either "liberal" or "conservative" in the classical sense, and often aren't very "moderate" though they might get classified that way as a result of being very liberal on some salient issues and very "conservative" (as that works out in the US political spectrum) on others.