plutocrat
From Longman Dictionary of Contemporary Englishplutocratplu‧to‧crat /ˈpluːtəkræt/ noun [countable] RICHsomeone who has power because they are rich – used to show disapproval champagne-drinking plutocrats —plutocratic /ˌpluːtəˈkrætɪk◂/ adjectiveExamples from the Corpusplutocrat• Labour should do it now and defy the Tories to defend the buying of votes by plutocrats.• Whenever the global economy is doing well, car makers immediately start work on a range of cars for the plutocrats.