To the contrary: go big or go home.
As the post from Solandri above points out: small scammers ask for 200 dollars.
Those are easily caught because The Big G probably don't buy small quantities of anything.
But send an invoice for 3 million and... "Hey, I'm not supposed to tell you this but manager X needs this gear for this super-secret, super-important project. You know, he's reporting directly to Sergej and Larry on this one. No red tape, no fuzz. Now do the needful and approve the payment so we both don't get into trouble for delaying this thing any further. I'll tell Eric you saved the day the next time we go golfing."
This man obviously knew how to press the right buttons with people. Hall of fame indeed.
Of course, as long as it was working, he couldn't quit.