Nah the most realistic use of rage in fiction was Youpi discovering you can have serenity in the most boiling parts of your mind to concentrate your rage on the targets at hand.

We get chapters spanning maybe 30 in-universe minutes where the mindless brute Youpi is having the biggest fight of his 2-month old life. We already know he's a shapeshifter, but he discovers he can harness his rage to create explosions. If he could master it he could use it as a weapon against the human invaders. After being attacked by Killua he comments on how nen is enabling people far weaker than himself to compete against him which foreshadows a future shift in his worldview. When he finally gains control over his rage he's able to quarantine it so it can be "focused on a target."
>Rage is not intended to be scattered. It's meant to be focused on a target.
He's accomplished his goal, but instead of using it to destroy the intruders as he originally planned, the quarantined rage no longer clouds his judgment, which forces him to view the intruders and himself from a different perspective. He's developed a sense of honor and respect for the intruders he once thought of as weaklings. It's because of Youpi's admiration that he strikes a deal and lets them walk.

It ties into CA's overarching theme about what it means to be human and it mirrors similar changes undergone by the other ants. Togashi made us believe that Knuckle's confrontation with Youpi hinged on a specific technique that would weaken and obliterate the enemy when in fact the technique was only successful because the ant we once thought of as a brute used its removal as a bargaining chip. In Togashi fashion my expectations were subverted.