Well that's what people say, yet I haven't seen lots of executives in large companies where scandals have occurred suddenly getting randomly killed by hitmen in the streets. And Madoff's still alive, too.
Beyond that, CEO's of large companies are generally under guard when the crap hits the fan, and Madoff was protected by police.
I wouldn't be surprised if the "CEO" of Mt. Gox soon finds out what a tire iron tastes like.
Madoff isn't dead, but he is in prison.
Madoff swindled the rich iirc.