Originally Posted by
Robanker
The Joker has also gone from mastermind to mad clown to serial killer and is currently in "as smart as and faster than Batman because he's skinny and this is video game rules!"
The Joker's never done any physical conditioning a day in his life, but he's popular and we can't just have Batman pop him once when he gets in range and the fight be over. He has to be a physical threat!!!!!! Does he actually weigh more than the clothes he wears? I'd like to know.
If a character being weaker didn't affect their coolness, he'd be a murderous clown with a theme and penchant for chemistry that, once Bruce got the drop on him, had his chips cashed. Now? He's lethal with a blade, faster than a man at peak physical condition despite weighing nothing and having no muscle mass or training to speak of, nearly as intelligent as Lex Luthor and likely a polymath himself (he did mess around with Lex's plans before bailing recently in Justice League), and has a toxin in his heart that will turn you into him? Did I miss something? I probably did.
Popularity and the perception of being cool is exactly what DOES make you stronger in comics. It's why Batman gets away with what he does, why Harley Quinn is getting to punch above her class and why Wonder Woman traditionally plays second fiddle in situations she should absolutely reign supreme. It's why Martian Manhunter will never be the big hero of an arc if Superman is present despite the latter effectively being a weaker version of the former.
Lex is a smarter than the Joker (he's canonically the most intelligent man on Earth), more physically imposing figure with infinitely more resources at his disposal and your evaluation is that he's only superior to the Joker "because of his tech." That's proof of concept right there. You're using his popularity to cloud your judgment. What edge does The Joker have over Lex? He's #crazy? That's only an advantage in comics, if there, because it literally never backfires on him. I've always struggled with this. I like both characters a lot, but really, the Joker has no clear advantage over Lex Luthor in any field outside sanity, and even then I question Lex's because he looks at Superman and thinks he can win.
I know what you're trying to go for here, but the reality of the matter is that if a character is popular enough, no amount of story or logic will prevent them from snowballing that popularity into more skills/assets/feats to elevate them.