The fully loaded cost of employees at that salary level is likely over $100K. You may still be right on the relative expenses, but you can't just look at the top-level salary line.
There are a lot of unknowns. It will probably be harder to get an acceptable quality outcome in most fields than in the text-based, limited vocabulary, comparatively highly structured, granularly documented, relatively unambiguous world of code. For the ones where it’s even possible with our current approach, the economics might not even be feasible to provide the service. Based on how much money these companies need to start making to keep the infrastructure running, let alone expanding, we just don’t know what the landscape will even look like in a couple years.
Also most people building these things are engineers and coders, what they know best is code. So naturally this aspect develops at an elevated speed. Getting non-tech experts to build a cutting edge tech product does not sound intuitively feasible.
Maybe to some extent, but with the way LLMs work, code generation is about as ideal of a use case as you get. Especially given the available training data.