But the point is, Khan was not written as a "madman" in either "Space Seed" or STID. The intent was not to portray him as some one-dimensional monster. He was clearly written as a nuanced villain with sympathetic motivations. Of the two main villains in the film, Khan was shown to warrant more of our sympathy than Marcus was. So I don't agree in the least that the film portrayed him as a "genocidal madman." Marcus was the one who was trying to start a war that could kill billions. Khan was trying to save his family, essentially, albeit willing to go to extreme measures to do so. Both were bad guys, to be sure, but Khan was the more sympathetic one.