The author is experiencing cognitive dissonance because he was expecting professional life to push him to his limits, in an environment designed for maximal productivity and innovation, working with people who care about doing the best work of their life. A lot of overachievers in school have that outlook.

There are some jobs that are like this, but they are very few and far between. There are far more companies that claim to be like this when really it’s just a convenient excuse for treating their employees poorly.

The reality is that if you care about your craft a tiny bit more than average, you will most likely end up feeling that you are overpaid for trivial work, that you could do so much more for the company, that your coworkers and hierarchy are apathetic to things that do not directly affect them (and will seek to avoid any change as much as possible). The more you stay in this situation, the likelier you are to burn out.

If you are that kind of person, then you need to GTFO and start your own thing - have your own skin in the game - or accept that that’s the reality of being a mere employee. That doesn’t mean that you can’t do good work, btw - just that you’ll have to find your sources of life fulfillment elsewhere.