To put it vaguely, stories are written to explore different ideas and beliefs by representing them through character's. Doom is a great example of that. His greatest strength is when his totalitarian beliefs are being written as ideas with distinct cause and reason behind them, instead of a strawman. It's so powerful because it represents one of the greatest conflicts since the beginning of 20th century: dictatorship vs democracy. 99% of pop culture stories being written nowadays inevitably ends with a pro-democracy moral. Because that's really the most convenient and profitable way in short term, and because everyone wants freedom. Even /pol/acks here don't actually believe in fascism from an ideological standpoint, they just dream of power over others. But Doom represents a different side. Doom is not supposed to think short-term, like all the good guys do ("save 1 person and let villain go" is largely favored over "let person die, kill a villain and save more potential victims"). He thinks about the potential greater good and how, to achieve that, a greater degree of control over people is required. That, of course, raises a bunch of questions: why should he be the one to hold all the control? Can't greater good be achieved through other means? But amongst these questions, there is the crucial one: MAYBE Doom is right? MAYBE persinal freedom in a state doesn't automatically equal greater good? Nobody really knows for sure, but Doom, as a concept, stands against the commonly accepted norms and laws of freedom, but he doesn't stand as just another selfish megalomaniac, but rather as a man with a distinct plan and compass, acknowledging that, however mass media doesn't want you to believe that, democracy may just not be such a sacred untouchable cow of a regime, and not everyone opposing it is a funny strawman, but rather, a proof of this world complexity and ambiguity. That's Doom's greatest strength.
