No need to be so cynical. Regular people are investing in publicly traded companies and they do care. Activist investing is on the rise. Private investors in the tech sector now do much more rigorous vetting of companies (especially after series B) than a decade ago, many people are already talking about the end of cheap money. Also, the phenomenon called techlash affects investors as well.
It might not be happening at a large scale, but we are moving in that direction in recent years.