Facebook is in the midst of its worst scandal since Cambridge Analytica. CEO Mark Zuckerberg has been hammered by presidential candidates, Members of Congress, fellow tech moguls and virtually every major newspaper, magazine and television network. Hundreds of Facebook employees have signed a petition calling for him to change course.

What did Mr. Zuckerberg do to deserve this avalanche of criticism? Cave to Chinese censorship pressure, like some NBA players? Walk away from U.S. defense contracts for ideological reasons, like...