It was clear the long term potential of positive impact on the world was way greater through building a company than anything else. And if you didn't quit you were very likely to get there. One of the things that most resonated with me was one of the Airbnb founders talking about how they were having the same dilemma as you. But then they saw someone who had started a company and realized the only difference was that they had made the decision to start a company and that's what made them realize they could make the same choice. I wouldn't recommend it if you have other life circumstances like debt or significant family obligations that constrain you. But if you don't have that I think it's a great path.
Better: Markets are way bigger and so the ecosystem has adapted around that. Funding is incredibly abundant (kids these days...). Information on how to start a company is more widely available. There's much more experienced help available. Tooling is much easier. What's crazy is people said the funding market was too hot in 2014: https://techcrunch.com/2014/09/05/its-time-for-vcs-to-run-to...
Worse: Hiring is harder. There is a lot more competition but I think it's outweighed by markets being bigger. I think talent is still the rate limiting factor overall for the growth of the ecosystem.