The author sees himself as an introvert. He likes typed languages. He reads books about Turing, Church and Gödel. He seems to like understanding things. Sounds to me like he has a cognitive style where what Kahneman calls System 2 is dominant.
I’m not familiar with all his “heroes”, but I would assume most people become “heroes” because they are somewhat extroverted. They like talking to people. They like going to conferences. They like being in the limelight. With this often comes a different cognitive style, closer to what Kahneman calls System 1.
People are incredibly different when it comes to cognition. I think the answer to the question in the title is: Your thinking is based on a faulty premise. There simply is no single objective function.