Ol' Doc was pretty influential for a long time - you can see aspects of him all over the place. From the parallels with Wondy here to the influences of Superman (the Man of STEEL as opposed to the Man of BRONZE, and they both have a Fortress of Solitude up in the Arctic) to the arguable influences he probably had on Batman (him being a genius who used his brain as well as his fists, not to mention all the sidekicks he had), the guy was EVERYWHERE.