I mean it's true, but I don't see it as so black and white. Even more than I'm looking out directly for my own compensation, I'm also incentivized to help the company itself succeed, so it can make sense to help out with small requests that won't get you a parade.

Likewise, there may come a day when I need something from coworkers, and when it comes, I'd appreciate enthusiastic help instead of being swatted away and told to go through the "proper" channels (which could take much longer).