Sorry to disagree, the real hero was General Smedley Darlington Butler, who stood up to
The Business Plot when MacArthur was the general whom the House of Morgan acting on behalf of the House of DuPont wanted to install as military President of the US after FDR taking the country off the gold standard halved their assets overnight. MacArthur was too unpopular, having fired on veterans camped in a Washington DC park demanding their WW1 veterans' bonus be delivered 14 years early. We came close to losing our freedom.
The Plot To Seize The White House - Jules Archer, YouTube, 28 minues.