All the benefits you're describing apply to the present moment; people with knowledge, self-discipline and expertise can leverage LLMs to great effect.
How many people like this will exist in a decade? Two?
Wouldn’t it be like any other tool? When I started programming it was writing code in a text editor, masm to compile and a dso to debug. That progressed to higher level languages and libraries where gradually the amount of end product I could produce in a week would take a year (or 10) in assembly. What CC can do is similar. So to your question: My skillsets evolve and instead of using some developer tools directly I become an expert on utilizing LLMs.
Meanwhile the people with mountains of money can leverage them to enough effect to make even bigger mountains of money, by hiring less-than-skilled people who will do way more with it than they could without it.