Unfortunately, honesty is the last thing Silicon Valley's hiring system is set up for. Employers expect you to tell you what they want to hear, not the honest truth. This means that the people they tend to hire will either be someone who either is lucky enough to think just like them or is willing to tell them everything they want to hear. And God forbid you express any opinions that would make you a "bad cultural fit". Companies give people they don't hire polite platitudes to avoid hurt feelings and legal issues.

In short, if you expect honesty in a job search, you'll be disappointed.