Another potential ficlet idea

I had this idea come to me earlier today, and I can't bear to see it go to waste. I was thinking on twists, and realized that a lot of them are like, you find out that you/the hero are really the villain at the end. But what if a villain was basically cursed to constantly aid humanity no matter how hard he tried? I envision a mad scientist who has a deep loathing for humanity and just wants to wipe it all out, but who's every invention somehow ends up making things better, which only further infuriates him. Like, society keeps praising him or his mysterious creations that seem to come out of nowhere and make everything better, and all it does is further loathe them and try even harder. Maybe he creates some super-virus that mutates and ends up killing off cancer, or some giant mechanical monstrosity that happens to show up at the same time as another monster and saves the city. Ooh, or a freeze ray the stabilizes the world climate. I envision a man, maniacally doing his damnedest to exterminate human life, but each one just keeps helping! The fury of an evil man as he continues to improve the lives of all he attempts to kill absolutely amuses me. Maybe one day he even snaps, makes a simple gun and decides to kill someone, only to save someone from assassination, or dislodging something important.

So many potential ideas. I think the hardest part is thinking of things going right. I've found many times that doing things backward is funny, but usually a lot more work and understanding of the subject. The nature of things is to fall apart, degrade, get worse, so thinking of them getting put right can be both more impactful and more difficult.