The referee in the South Korea-Italy game was called Byron Moreno. He never officiated another game. He was paid by an Italian TV company (the equivalent of, say, Soccer AM), to run across the stage on live TV with a briefcase full of money as part of a pantomime/satirical act after the tournament finished.
I remember the games very well. I finished my exams on the day of the South Korea-Italy match. Italy should have been out of sight. They got some shocking decisions, but this was no excuse for their characteristic negativity after going a goal up. However, it really did become suspicious after the Spain game; not only did Spain have two legitimate goals ruled out, the video does not show how far the Korean goalkeeper was off his line for Spain's missed spot-kick.
The cynic in me expects South Africa to get the rub of the green this summer with decisions.