The art is as always incredible, but they left out how much of a big deal becoming a dokkaebi king is. A big reason the dokkaebi here even agreed to think about the contract is because he can climb the ranks if he's channel expands.
Also, streamer's vow (if not mentioned) is a vow not to help the incarnations (participants) in order to create a better story since their interference could change the natural progression of the story.