Sanders, despite some reformist tendencies, is a also corporate-aligned. He is a staunch supporter of the Democratic Party and of its pro-corporate leadership; supports the military-industrial complex and most (not all) of its foreign interventions; and recently voted for the CARES act, which transferred huge amounts of wealth to large corporations.
Those "Bernie-aligned" elected members of the house have just recently chosen to support Hundred-Millionaire house member Nanci Pelosi for speaker of the house. They did not even do this in exchange for anything. Other Bernie-aligned representatives, already in office before this year, have also neglected to act against their pro-corporate party line.
So, the moneyed elites can indirectly win even if they ostensibly lose.