I agree with most of what you say , but there is credence to the thought that progress happens when you work harder than normal. IMHO great advancements in science or engineering do need you to put in extra hours . It’s maybe how our brains are wired . To overcome our biases and think out of the box or have an Aha moment, you do in my experience have to work long hours . But that is different from the hustle culture you mention which is more about personal gain not about being good at what you do