He was later involved in the many failed attempts at a Supes movie in the early naughties and wound up working on Superman Returns.
This obscurity is definitely not true of Jon Peters though, who served as a producer on Batman and Superman films for over twenty years.
Unless they’re a director taking on more responsibility or a superstar known for their specific project choices, producers are rarely the most well-known person on a film set.
Due to the technicalities of his contract, he remained an executive producer on Man of Steel, but his legacy proved so potent that he was banned from the set by Christopher Nolan, the film’s producer.