Yeah, mainstream comic book villains didn't start getting more nuanced until the seventies and especially the eighties, possibly as a consequence of the comics code, which included “crimes shall never be presented in such a way as to create sympathy for the criminal”, and didn't allow “sympathetic depiction of criminal behavior” until 1971 (and which also hilariously led to zombies being called “zuvembies” in Marvel during the seventies, as that simple change was apparently enough to make them kosher), which publishers didn't start mostly ignoring untill the mid eighties (though most didn't officially fully abandon it until the noughties or early twenty-tens).