This has a parallel to startups. You want to make a startup as a technical co-founder, but you are not the "idea man". Does the "idea man" get all the credit?

This has a parallel to startups. You want to make a startup as a technical co-founder, but you are not the "idea man". Does the "idea man" get all the credit? Someone else conceptualizes the art and someone else, or many others, do all the work. Who gets the credit?