Short note here, afaik Ditko left Marvel because his randian philosophy wouldnt allow him to compromise. Lee was grouchy about that sure but thats on Ditko frankly. As for Kirby whilst he and Stan had issues at times Kirby left because the EIC (not Stan) wasnt paying him enough. Just because Stan showboats and is good at promoting himself doesnt make him a complete shitheel. You want that you go to Bob Kane.