In the past it kinda worked out, because the code of OSS acted as the portfolio of the developers, who would get hired by big corps. (Today with LLMs you have no way of knowing who was the original author)

We definitely do not pay enough for the utility we get from OSS. But on the other hand do we want do copyright in code? Also when you pay for something you can hold liable the vendor if things go south (security holes etc). Do we want the devs of OSS to be in such position?