I know for a fact that Wingti had insider information about the float of Oil Search shares some years back. The Oregon float at $1 per share - wingti bought several millions of shares using his previlege as PM - within 3 the share prices rose to $3 per share. He literally made about $5 million over night!
I have absolutely no respect for the man but let's be honest he is smarter than your average MP or Papua New Guinea. The man knows how to make money for himself.