I personally think a far more likely scenario is that small businesses of one or a few people become vastly more commonplace. They will be able to do a lot more by themselves, including with less expertise in areas they may not have a lot of knowledge in. I don't think regular employees today should see LLMs as competition, rather they should see it as a tool they can use to level the playing field against current CEOs.
LLMs aren't some magic silver bullet to elevate people out of poverty. Lack of access to capital is an extreme restriction on what most people can actually accomplish on their own, it doesn't matter if they have the worlds best LLM helping them or not.
It doesn't matter if you use an LLM to build the most brilliant business in the world if you can't afford to buy real world things to do real world business
Also, Historically when regular people decide to level the playing field against the ultra wealthy, they use violence
I don't think anyone should be expecting LLMs to be the great equalizer. The great equalizer has always been violent and probably always will be violence.