As you can see from my extensive research, destroying the planet through climate change equals money!
~ Dr. Blight explaining the "benefits" of pollution to Lord Boxman
Polluters are villains who commit crimes against the environment, whether it be out of disrespect and/or greed (such as immoral businessmen) or genuine malice (some supervillains and/or Dark Lords).

They are the opposite of Eco-Terrorists, who commit crimes for what they see as good for the environment.