Fair. And I believe this absurd was addressed in universe multiple time. Often with him losing the money in a process. But yes, it's one of the unfortunate consequence of our shift in how we see billionaires. Batman is the richest and smartest person in the world who care only about one city... with it's underfunded mental asylum looking like a hose of horror.
The irony is clear. They have a better way of fixing the system than fists and arrow. They are the system.
The lean batman and lean GA are the only one that make sense. But they need to be part of the Justice League with immortal gods. So they need the 9th metal mech and killer ray space stations... which cost money.
But saying GL is not an environmentalist is like saying that Batman don't care about Gotham. (Even if they have a stupid way of organizing their priorities.)
So I'll leave it unedited out of respect for your adoration :)