Though I want to disagree with this lunatic, I can't help but also agree with the opinion that we are easier to remember bad things than a good thing. In life, in history, or maybe in learning, we remember the mistakes or bad things much faster than a correct or good thing.
I disagree. We remember far more heroic myths than villainous ones.
If I were to name the one [villain] most known in the world right now, I would pick a certain rejected painter. That guy existed barely a single generation or 2 ago (using proper generations where someone must have lived out a lifespan, and not the real definitions for the word), super recent.
If I were to think about the oldest ones I can think of, I probably get quite a few still, like trickster-gods or assholes like zeus. But even those are just ancillary to the actual heroes (illead, herakles, etc), or at the very least just one among many (as loki is to the rest of that pantheon). And arguably those myths aren't even about villains, but merely powerful assholes.
Returning to actual heinous villains (and not just mean-spirited gods that aren't actually performing evil en-masse so much as just causing a tiny localized tragedy), I can only think of some inbred royalties merely hundreds of years ago. Beyond that I am drawing blanks.
So no, when it comes to being remembered through prosperity, the "good" guys are in a clear majority. Even if only because the story is through their own eyes (or someone near them) while what actually makes it noteworthy enough to have been remembered was their sheer power/feats (aka the story & storytelling).