Plutocrats
Financial Clique, Zaibatsu
noun, の adjective
A wealth clan is a group of people who do whatever they can to get their money. These are the plutocrats of the world, but you can also call them financial clique or even the Zaibatsu (sometimes brought up in English language history / economic books regarding Japan).
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
あの財閥は戦前から日本を支配している。
That conglomerate has ruled Japan since before the war.
せっかく有名な財閥で働いてたのに、どうしてわざわざうちにインターンしに来たの？
You worked for a famous conglomerate, so why did you come here to intern for us?
もし私が財閥のオーナーの犬だったら、毎日ステーキを食べるんだろうな。
If I were the dog of a conglomerate's owner, I would probably eat steak every day.