>useful for the primary function of their job
the number of things that affect your job performance are endless and it is arbitrary where you choose to stop improving. not only is it arbitrary where you draw the line, its arbitrary that you chose to optimize your job in the first place. these things are non-self-evident choices based on personal and societal feelings rooted in first-principle thinking about the meaning of existence.
"invest in your exponential job growth" glosses over some pretty significant life choices that are more important to recognize than saving 30 minutes a day at the office.