It's all about the rents, part one million and twelve (b)
Warren is seen as a polarizing figure [by whom?]. Her aggressive advocacy on behalf of working-class families has made her an enemy of lenders who favor less regulation and more opportunities for fee-based income, like excessive overdraft levies and credit card surcharges. Mortgages with exploding interest rates and well-hidden fees were particularly profitable for lenders during the boom, and Warren has fought against such practices.
Warren wants to make sure the rent-seeking parasites in the financial sector don't kill the host.
Therefore, she's a "polarizing figure." Alrighty, then.