Have always been vaguely curious about The Question and Mr. A, Ditko's comics based on his "objectivist" (Ayn Randian) philosophy -- I've only seen individual panels. The Alan Moore/Dave Gibbons Watchmen books immortalized the latter in the form of the uncompromising, borderline sociopathic character Rorschach (some might say full sociopathic, but he is a hero). Paradoxically Ditko's hardline moral code, which Moore was slightly parodying, made for the most memorable character in the series.