"Jack Kirby worked for Marvel until 1970, and then he returned for another three years in 1975. But since then. in the 30 some-odd years since he left Marvel, hundreds of creators have added to the mythos and stories of the characters that Marvel owns and Jack helped create. Hundreds. And many of them added integral aspects to these characters which are just as important to their legacy as Jack and Stan ever did. Take a look at Walter Simonson’s run on Thor and tell me that he doesn’t deserve as much credit as Jack or Stan when it comes to the lasting mythos of that character as a modern day super-hero. Or how could you have the Tony Stark we saw on screen in Iron Man without David Michelinie and Bob Layton’s 'Demon in a Bottle' run on Iron Man in the late 70’s?
Nick Fury was co-created by Stan lee and Jack Kirby. A fictional WW2 army hero. He was reintroduced later as a cold-war spy. A Jack Kirby creation. But then Jim Steranko got a hold of him and transformed him into something else entirely. Steranko injected 60’s pop-culture and sensibilities into the character and his book. Fast forward to 2000, when Marvel decided to reboot their entire universe in a separate line of books called the 'Ultimate Universe.' In 2002, Mark Millar and Bryan Hitch launched The Ultimates which reinvented the Avengers. A team assembled by a very different Nick Fury, modeled with the actor’s permission after Samuel L. Jackson. You tell me. Are any of these guys even the same character? Or are they different characters with the same name?"
-- Scott Kurtz, on renewed calls for proper credit, and compensation, for Jack Kirby's contributions to the Marvel Universe