Stoking the fire a little then?
You know, I don't think Sarah even looks at it like that. She's just doing the job she's been called for. That's how I think she sees it.
She doesn't need a title or an office to fight for what's right, but the fact that she's so effective, and so relentless in the battle, automatically positions her to be chosen by her fellows for elective office.
Just as in business, those who take responsibility to get things done, usually wind up with the jobs to match. She's kicking more ass than anyone else on the block, so the people are likely to simply choose her as the Ass Kicker In Chief. Pretty simple, really.