Copyright doesn't really privilege giant corporations. In a world without it, they can just use their market power and immense resources (e.g., SaaS) to protect their interests.
Copyright is one of the few tools the little guy can use to protect their interests against giant corporations. Abolish it, and one of the first things that will happen is the RIAA will stop paying artists anything and become the biggest "pirate" in the world.
It's mind boggling how some people have that so backwards. I'm guessing it stems from only thinking about copyright in the context of "RIAA sues..." articles and complaints about Elsevier, without thinking about it from any other angles.