When then-Macquarie Bank managing director Tony Berg left the Millionaire's Factory in 1994 to become CEO of one of his bank’s key clients, building products company Boral, an enduring relationship was cemented for the longer term.

Berg’s time at Boral wasn’t marked by great success, but his term finished in 2000 with the Macquarie-advised demerger of Origin Energy, which went on to be a market star before crashing back to Earth in recent years.