Tell me what makes you believe that those big techs are not going suit those "banking, insurance,legal" orgs by providing them their own LLMs? For example, ever heard about github enterprise? you pay a stupid amount, github setup everything almost identical to the public github, just on your servers for your employees. Why big techs won't do the same here?

Those high profit margin part of the LLM business is for big players only, they don't burn hundreds of billions to offer you opportunties to cut their profit by capitalizing on their core business.

Communism doesn't exist in high tech. People don't work their xxx off to pave ways for your free lunch for life.