There is an exception to every rule, and one of my rules is that all politicians are money grubbing, ego-maniacs, who want nothing more than power. She might be the only exception to that rule.
Difference is she is not some legacy admission, born with a silver spoon in her mouth. I'll take a bartender from the Bronx over Suits McHedgefund in a goddamn heartbeat. There is such a mountain of bullshit she would have to successfully climb to be on equally shitty footing with other politicians, and I just don't see her doing that. There are plenty of us that just don't give a shit about excess money and power and shit.
Agree that humble beginnings stories probably make for better politicians (she's far from the first though), but the drive to tolerate years of political bullshit is almost always a personal power quest and indoctrination into a corrupt system makes for corrupt individuals.
The expectation from prior data would be for her to follow this route. I will disagree with you that she doesn't care about power (and shit).