Despite general acceptance of Byrne's characterization, which led to its influence in media adaptations, DC Comics writers began bringing back his quality of being a scientific genius in the 1990s in stories such as The Final Night. By 2000, it was said that Luthor's genuine accomplishments in several scientific fields is what helped create LexCorp and make it so successful so quickly (in early Post-Crisis stories, Byrne suggested that Luthor was recognized as a brilliant inventor and great scientific mind, but had largely withdrawn from his laboratory in favor of the boardroom). Regarding the character being a corrupt billionaire rather than a mad scientist, author Neil Gaiman commented: