If the buying public rejects it, the design is worthless.
A designer's task is to design something that others will play and use.
That's more the business man's task. Marc's a brilliant game designer. His business skills . . . well, let's be generous and say that when the two skill sets conflict, he always lets the designer's priorities come first, and the business priorities second.
There are understandable reasons, but he desperately needs a professional editor with game design experience.