It doesn't need to lead to AGI or a good coding agent. Some of the only people who are actually profitable in the LLM industry are the people making actual chatbots. There are several bootstrapped startups that run open-weight models with a $10 or $20 monthly sub and make millions in profit off of inference from people just talking to the things, usually for character roleplay / "AI boyfriend/girlfriend" stuff etc. Some of them even took those profits and invested it into training their own bespoke models from scratch, usually on the smaller side although finetunes/retrains of Llama 70b, GLM, and Deepseek 670b have also been done. Grok could probably be profitable if it targeted this space, as the most "intelligent" conversational/uncensored model.
This is already presupposing that profit even matters, though. Musk already burned some $50 billion dollars to control messaging on political discourse with his acquisition of Twitter. It was not about money, but power. After you already have infinite money, the only thing left to spend it on is acquiring more power, which is achieved through influencing politics. LLMs represent a potentially even better propaganda tool than social media platforms. They give you unprecedented access to people's thoughts that they would probably not share online otherwise, and they allow you to more subtly influence people with deeply-personalised narratives.