Good point. Factions and parties aspire to become "the Establishment," but this hardly matters to the public, even if they share the expressed ideology of the party or movement. The electorate only wants good, effective and honest officials. We certainly will try to vote out any entrenched, smug, or arrogant establishment, but if the new group shows signs of developing the same faults, the worst thing we can do is to let them take us for granted. Make any party, faction or establishment earn your vote or suffer the consequences of not getting it. Don't give your vote away too easily.
I can certainly admire the conservatives of the 1960s and 1970s setting out to change American politics. Once a movement has changed things and made a place for itself in the political system it's harder to get enthusiastic about it. All other things being equal I'll certainly vote for the more conservative candidate, but "we are the establishment now" doesn't resonate with those of us who never wanted to be part of a governing elite and aren't so crazy about political or journalistic careers. It has to be about something more than rank, office holding and hegemonic position for those of us outside the Beltway to get very interested about politics.
Journalism is "the establishment" in America.