I don't believe this is true. I think the startup ecosystem actually learned how to game "making something people want". After all, startups are companies, companies need to profit, and "making what people want" vs. "making what people will pay for" are similar, yet not perfectly aligned goals.
pg may be right that startups are "as impersonal as physics", but users aren't, and herein lies the trick. One of the most blatant ways of gaming the system is the exit-seeking, toilet-paper startup. It exploits the disconnect between "growth" and "making something users want". The algorithm works like this:
- find something people apparently "want"
- make a half-baked solution, maximize it for user-acquiring candies
- market the living hell out of it
- keep the growth until you can sell your startup or get acquihired
- kill the product; who cares about it, anyway? oh and don't forget to thank your users for the journey, you couldn't all share this awesome moment without their help.
I want startups to be like pg describes. Maybe the most successful ones are like that. But there are so many that don't care about users that people are already developing a huge mistrust with everything-SaaS. I guess it's exactly like univerity - you can game your way through it if you treat is as an intermediate step. That your trick-grades don't reflect any actual knowledge doesn't matter after they get you a good job.