Maybe I'm missing something, but isn't it a fairly simple answer that most founders just prefer mindlessly chasing rounds of investment and "growth for the sake of growth" and cashing out on an exit, rather than just growing organically with minimal outside investment/influence?

Anyone can choose to build a quality app/service/startup based on the merit of the actual product with company growth fueled by actual need of technical talent and profits from a monetization model, rather than just taking venture capital and hiring six-figure salaried engineers just to fill another open office chair and implement selfie filters.