Same as doing accounting, teaching, doctoring etc. Yet people still do it. Because some people have families, mortgages and can't just flip table and do entry level job in completely different industry.

Not every programmer is 10x programmer who has side projects that they work on after work and dreams in c++. Same with any other profession. I'll bet there are skydiving instructors who don't care much about it anymore but still do it for monetary reasons.