In all seriousness, this villain is the most ridiculous in design to have ever come from Ben 10. The premises is that he's the result of Trash-eating bacterias designed to destroy a trash island in the Pacific only to undergo mutation and gain sentience and control over itself to create a physical body. and what is it that this creature wants to do? Take over the world by submitting and forcing the human populace to create more and more trash for itself to feed off of.
Anyways, Ben goes Waybig and managed to run and create a super-sonic vortex -it happens- to send the Garbage Monster careening off in space towards the sun. But unlike the Garbage Islands in Generator Rex
where everyone is fully aware of the dangers of trash in oceanic environments and is actively doing everything in their power to rid it (even the EVOs living in the garbage islands pitch in to clean up the trash by breaking it down into reusable matter). The dumbass humans of Ben 10 however are still pretty stupid as immediately after seeing Way Big tangle and go toe-to-toe with the Garbage Monster, right off of the coastline: people are STILL throwing away trash into the oceans and the trash drifts towards another Garbage Island.
So Captain Planets' and Wall-E's initial message about cutting-down on garbage production is pretty much a wasted effort here in this show. Talk about insensitive.