What's the difference between New Guinea people and Goldman Sachs denizens?

"We know more about the motives, habits, and most intimate arcane of the primitive people of New Guinea or elsewhere, than we do of the denizens of the executive suites in Unilever House."

Roy Lewis and Rosemary Stewart (1958)

(Quoted in the first chapter of Managing by Henry Mintzberg, published by Berrett-Koehler Publishers, 2009)

What about the denizens at Goldman Sachs, JP Morgan and the like ;-)