I just don't get how "business" types who can't code or design get the idea that deserve 100% of a project when they don't want to pay the developer. It just b

I just don't get how "business" types who can't code or design get the idea that deserve 100% of a project when they don't want to pay the developer. It just blows my mind. If you can't pay me, then I deserve at least 50% of the equity. She was doing the "business" end of a project that had no customers and no "deals". So, what exactly did she do here?