I saw a short video on this same thing the other day. The man who invented the rotary dialing telephone was a funeral home director and suddenly the other funeral home in town started to get all the business. Come to find out the other guy's wife worked at the telephone switchboard and would connect anyone to her husbands funeral home instead of to the first guy. After the law refused to get involved, he took it upon himself to cut her out of the equation and it worked. He ended up making more money off the patents of the phone, but still liked being the funeral home director.A lot of super villains fixate on revenge after they get beat the first time, and unfortunately all their effort goes into that. Thus are rogues galleries born.
I feel like it's kind of making a comeback for perhaps obvious reasons lol.To me, the specifics are less interesting than the general idea: the powerful BBEG has the capacity to do good in the world and actively chooses not to. The BBEG isn't misunderstood or tragic or bound by fate -- they are just a jerk. Too often in trying to create complex and sophisticated themes for our games, we forget that beating up on plain old jerks is more fun.