wolf of Wall Street

noun1

1. •
   (US) (A name for) an aggressive, prominent, and wealthy financier; specifically (derogatory), one who swindles or takes unfair advantage of people.

   • You're dedicated, you're creative, you're innovative. You have a sincere desire for mankind— the very people who the wolves of Wall Street fear. And to me, you're removing yourself from the war. — 2015