Men do not have to cook their food; they do so for symbolic reasons to show they are men and not beasts.
I have worked with a great many comedians as opposed to comics, although I have worked with comics as well, I make the distinction.
In the industry, you do need some ethics - if one film does well, then thousands get work and money comes back to the industry. I guess the bottomline is, if there are two versions, then the better one will click.