robber baron

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌrobber ˈbaron noun [countable]  SCCa powerful person who uses their money and influence to get more money, business, land etc in a way that is slightly dishonest 强盗贵族〔指用自己的金钱和影响力攫取更多的金钱、生意、土地等的权贵〕

ˌrobber ˈbaron nounChineseSyllable  

robber baron
ˌrobber ˈbaron noun [countable]
a powerful person who uses their money and influence to get more money, business, land etc in a way that is slightly dishonest