The tale goes like this: one day visual arts got commoditised to the point any given visual artwork could be obtained for virtually free digitally. This has been the case for centuries. The aural arts (see records of spoken poetry, podcasts, music) have been commoditised for a long time. Full commodisation might never been happen (ie you can still work in the field) but it is undeniable that it has had a massive impact in their respective fields. Getting a Picasso-like painting might not be quite possible but we are getting quite there, same with music.
The same is coming for devs.
Devving is still far away but it doesn't really take that much to produce a significant impact in the field. The percentage of devs who can be able to get late 10s salaries will be gradually diminishing over time. This is what early stage commodisation looks like.