Think of Khal Drogo as Khan and Tony Stark obviously as Stark
Drogo is more of a Dominant Alpha who people fear and women love because his presence, he would rather people fear him and admire him for his strength and manliness. He is much more dominant and assertive with people knowing exactly who he is and being intimidated by him.
Stark is more of the creative genius who can be a leader at times and likes to work with people, women also enjoy and are attracted to his vibe his nonchalant vibe, he can also be the party boy who has it all and gets everything he thinks he wants. He is much more charismatic and has that happy go lucky vibe to him.
And then you have Emperor which is like an embodiment of Batman/Bruce Wayne without the martial arts skills unless you mixed it spartan lol. His presence is intimidating and people do what he says even when not wanting to because he just has that vibe that he knows what is going on and is a good leader. He also excels at business and discipline with crazy productivity but likes to be a lone wolf unless he absolutely has to work with someone.