Also, budgets. I have been vocal about being on-call, no problem for me as long as there is extra compensation (in our org there is).

No takers yet.

Companies hate ownership because it means they need to hire competent people who are more expensive

These days its turned less into bus factor and more into got-fed-up-of-wage-compression-and-left factor

That only works in world regions where being a developer isn't seen culturally as yet another office job, and there is actually a job market that allows jumping easily across companies.

Even when one is lucky to find such companies, it only lasts until the next round of layoffs or management re-structuring, been there a few times.