I want to point out the comment by Brent Eric Anderson under the article. I am going to assume you all know who he is, if not cover up your own ignorance with Google, fool.
I have been a successful comic book artist for over 35 years and have mostly worked under the onerous conditions of Work-made-for-hire, wherein, by agreement (a condition of employment, I might add) the people (or company) I sign with is considered the legal author of the work for all future economic exploitation. I've worked under two minor exceptions to this general principle. In one long term project I have a negotiated equity share in any exploitation of the material property I have created; and in the second, the property was indeed creator-owned, but as a condition of the agreement, I granted the publisher the right to agent and legally represent the property in other uses, and sharing in a percentage of the proceeds. Neither of these agreements have resulted in an abundance of income. In both agreements I waived the right to negotiate my own property deals in order to make a living. A bird in the hand, as they say. Totally creator-controlled and negotiated properties can be very lucrative, but there are serious risks of poverty if no one with investment capital is interested in the property under those non-exclusive conditions. Our business culture is based on the overt exploitation of converting resources into commodities, whether in raw materials, peoples' labor or in the products of that labor. It's very difficult for an artistic non-business type to get a "fair shake" (whatever defines a "fair shake") in our world of commodity ownership.