In the LLM world you never get a chance to get paid to work on those greenfield projects because the person with the idea is churning the prototyping and discovery work themselves.

If you want to get paid to work on software, you get involved after its found success and the stakes get higher.

(Which assumes there are still significant areas where economies of scale reward that vs everybody just having their own DIY version of everything.)

Or economies of liability and buck passing. I suspect managers and businesses will still want to be in the game of "not my fault, supplier is working on it, we can sue them if they don't meet SLA".

You've got to be the person with the idea. I'm currently doing that. I spent the past year working on a frustrating project where everybody else did everything wrong, so now I'm building it on my own, hoping to sell it to them. (No idea if that will work)