zoidberg says he got money from God. the professor says God wouldn't do that.
later, when zoidberg has lost everything at gambling, the professor says happily: "This is the god i know"
"This is Katana. She's got my back. She can cut all of you in half with one sword stroke, just like mowing the lawn. I would advise not getting killed by her."
There is nothing wrong with that. People should be paid for their work. The type of monetization can be decided by the developer. Earning money is necessary, not selfish