To be precise, Pluto/Hades wasn't the god of the dead, but rather the underworld. Thanatos was the God of the dead, although the he was solely Greek because the Romans didn't want to have a God who was literally death personified
how is it that this show represents all fandoms perfectly? <- because Spongebob has the answers to all life's quandaries. The Tao of Spongebob!>- You are so right I realized that too, there is a Spongebob reference for everything in all fandoms.