Reaganomics + neoliberalism + Greenspan libertarianism.
Unleash freedom for markets, money and corporations, democracy, human rights, ethics and morals be damned! Exorbitant growth in the pocketbooks of the few, big crumbs for those in charge, govts and politicians. Sinema quickly learned this.
No, you are right not to put any polit on a pedestal, it should be a boring job where everyone is working for the people. Net, net her advocacy for consumers has been positive and ruffled the feathers of big business. Doing something right.