Why the implicit trust of Sarah Palin?

I don’t understand the allure of Sarah Palin for two reasons:  1) She endorsed John McCain in this 2010 election. John McCain, one of the worst progressive RINOs out there.  If she did it as payment for choosing her as his running-mate in 2008, then her endorsement was based on politics--not principle.  This troubles me deeply.  2) She bailed as governor of Alaska.  She should have stayed and made the hard decisions and shown her leadership ability.  Instead, she quit her job and began traveling the country on a Sarah Palin self-aggrandizement tour.  Can someone explain why conservatives trust her?  I want to trust her too, but I have strong misgivings.