Ah, the classic "work even harder and do things you're not paid for with zero guarantee that someone will appreciate what you're doing while the company reaps the benefits". What a novel thought, I am so glad I clicked the article, especially since the author isn't even speaking from experience so he has nothing to back up his blogpost with.
Listen, you don't have to do this and are free to disagree. However, this method has worked and will continue to work. Lots of people are fine just doing their shift and leaving, that's ok. Some people are not satisfied with that and want more, and there are strategies to do more work and get paid to do so.
Do free work. Do good work. Be liked by your superiors.
And sadly "good work" is weighted the lowest. And if you are liked enough by your superiors, that's often enough.
And you are actively disliked by your superiors, it does not matter how much work you do or how good it is. You will plateau.