What Are Common Motives When The Main Character Is Villain In Novels?

So I've been thinking about this a lot lately, especially after rereading some older series. Demonic villains are often painted with this broad brush of 'pure evil,' but that's a lazy shorthand. More interesting motives usually boil down to a perverted sense of order or a reaction to their own nature. Like, take the classic 'cosmic balance' motive. A demon lord isn't just wrecking the mortal world for fun; they're trying to tear down the divine order they see as hypocritical or restrictive. Their malice is a philosophical statement. They view creation as a flawed experiment and want to reset it, often seeing corruption and sin as inherent truths that the gods foolishly try to suppress. Then there's the 'prisoner' motive. Bound for eons, stripped of power or realm, their entire drive becomes revenge against those who imprisoned them or a desperate, destructive need to reclaim their lost kingdom, even if it means burning the new world to ashes. It's less about philosophy and more about a deeply personal, festering wound. You also get the 'addiction' angle—demons feed on something, be it souls, pain, fear, or sin. Their villainy isn't about conquest per se; it's sustenance. They're like a force of hunger that happens to be sentient. The creeping corruption of a noble house to harvest their collective despair feels different from an army at the gates. It's a slower, more intimate horror. Honestly, the most forgettable demons are the ones who just want power for power's sake. The memorable ones make you understand, even if you can't sympathize, why they believe their terrifying vision is necessary or inevitable.

I think the textbook answer is something like revenge or power, but honestly I see a lot more 'good intentions paved with terrible methods' these days. The villain who wants to save the world but decides the only way is to wipe out most of humanity first, that sort of thing. It's a motivation that makes them almost sympathetic, or at least understandable, which I find way more engaging than a cackling evil overlord. On the hero side, I'm tired of the chosen one just wanting to do good because it's right. The more interesting ones start with something deeply personal—protecting a sibling, avenging a mentor—and that small-scale loyalty accidentally pulls them into the bigger conflict. There's also a weirdly common thread of boredom or a desire for challenge among some antagonists, especially in progression fantasy or stories with game-like systems. They've reached the peak of power and find the world dull, so they orchestrate chaos just to feel something again. It's a very human, if incredibly selfish, motivation. Meanwhile, the hero's drive often comes from a lack of power, a feeling of helplessness they're determined to never experience again. That fear can be just as potent as any lofty ideal. What I don't see talked about enough is the motivation of legacy or creation. A villain might be building a horrific new order not for themselves, but because they genuinely believe it's a superior system that will outlive them. A hero might fight not to preserve the old world, but because they've glimpsed the potential for a better one and can't stand the current corruption blocking its path. That shift from preservation to creation changes the entire emotional core.