plutocrat
noun
[ ˈpluːtəkrat ]
• a person whose power derives from their wealth.
• "champagne-swilling plutocrats"
Similar:
rich person,
capitalist,
tycoon,
magnate,
nabob,
millionaire,
billionaire,
multimillionaire,
nouveau riche,
person of means,
fat cat,
moneybags,
zillionaire,
squillionaire,
Midas,
Croesus,
Dives,