Because there are way more of us out here that are non-RINO. Palin does not need the blessing of the party hacks. Just as the commies took over the Dems, we too can take (back) the Republican party.
Remember all those Tea party candidates that the GOP actively fought against? The party got slaughtered. Sure, they won a couple, but not one of those winners had a fraction of the people behind them that Palin does...and they still won.
Basic math.
Politics is not basic math. More than a couple of Tea Party conservatives “slaughtered” their opponents in their respective primaries, only to have the party “hacks” as you put it, turn on them causing them to lose in the general election. Palin is making sure that does not happen to her before she goes out and wins enough delegates in the primaries to lock up the nomination - only to have the establishment stab her in the back. And don’t think they won’t do it!