Eehhh... they're more evil despot than supervillain, imo. There's overlap, obviously, but supervillains are usually more... personal, I guess? They only tend to have armies when they're extradimensional/extraterrestrial invaders, or made robot/clone/etc. forces.* You'd want more cartel leaders, corrupt businesspeople, that sort of thing. Plenty to choose from, it's just kinda' hard to find names some days, not the least because it's often groups of individuals doing the damage rather than any one person taking the bulk of the blame. I mean, you look at stuff a handful of years back like the tobacco (or lead, or a fair number of other) industry stonewalling/obfuscating information that lead to the deaths of thousands, racking up kill counts and immoral actions that would make the Joker blush, and you have trouble pointing to any particular individual as the primary cause.
Or guys like this, or any number of other "asymmetrical warfare" specialists that've operated throughout the world. Plenty of
PMC owners, stuff like that, would probably fit the label pretty well, if you're looking for the modern picture of a supervillain.
*And your exceptions tend to be folks like Dr. Doom, who, despite leading a military force, largely operates either solo or leading small force type of stuff.
