It's why he's my favorite supervillain. He's a guy with the scientific prowess of Reed Richard's and the magical skill of Dr. Strange who has such insane levels of megalomania that he believes only he has the vision and power to save the Earth from itself.
He's not out to murder indiscriminately or conquer just to conquer. He genuinely believes he has the planet's best interest at heart and everyone else is too stupid to see it. And because of that he will take whatever measures he deems necessary to accomplish his goals while still adhering to his admittedly situational concept of honor.
But he's not a well intentioned extremist like Magneto. He's vain and paranoid and arrogant beyond measure. To the point that he often sabotages himself.
He's a dictator but his people kind of vibe with him and he genuinely loves Latveria. His soul had been judged to honestly have the Earth's best interest at heart, but only in the context of him being an absolute ruler and directly controlling everything.
He's the ultimate control freak who has no time for your bullshirt and knows you're too stupid to save yourself so he's going to do it for you, but don't piss him off while he's doing it.