Captain Planet… which is kinda of a joke.

I wouldn't say that - I'd say that somebody could write a book on how Captain Planet represents superficial "green" capitalism. The great conceit of Captain Planet is pretty much the exact same conceit all of super-creep-dom perpetrates - that the problems are caused by a "few bad apples" that simply requires institutionalized "heroic" violence to solve, when, in reality, it's that very institutionalized power systems that are the root cause of said problems. It's not the Joker that is the problem - it's the parasitic system of exploitation that allows people like Bruce Wayne to exist that is.

could have been a lot better for me if they actually gave a bit more attention to Stark using the arc reactor to solve dirty energy globally.

No, it wouldn't, because they'd be pretending that capitalists will (somehow) be solving the problems capitalism created. We have a word for that - it's called propaganda.