King of what?

Copying what works and doing it cheaper without the cost of having to figure it out is what's profitable.

Cheaper? I'm confused, how can it be cheaper than free? Most of what LLMs for code rely on is already open source. Also AFAICT (which is trick since numbers aren't public) GenAI is some of the most expensive use cases and those companies (OpenAI, Anthropic, etc) are losing money.