I'm personally of the opinion that the amount of harm this will do will never outweigh the good one could do. In the same vein, I could also start a toxic chemical disposal company and just dump the stuff in the ocean, and then use the profits to support cleaning up the ocean. Burning cycles to maintain the blockchain for... pixel art is not something that I consider ethical behavior.

But you do you, perhaps you can design a Blockchain solution for water rights, it will greatly reduce friction for nestle to buy up more water rights for the billions of plastic water bottles they need to fill up for rich suburbanites, they like the flavor better.