Ono's lash out shows the clear divide in why athletics get so much focus and support compared to the arts. They have tangible results that can be seen like winning a game whereas because the improvements from the arts typically are more personal they are viewed as less desirable. So he believes that he is the only one working hard yet its pretty shallow and shows he hasn't developed as a person because to him the only growth that matters is working hard to be good at a game that has no real consequences.