Weird (to me). I don’t care what a coworker makes or what their title is. I don’t even care what my own title is. When a former employer let me choose the title for my business card I went with “problem solver.” All I really care about is having competent coworkers with integrity who are respectful to each other. It’s not my job to judge the value of a coworker’s work.
What I was trying to say by “value” is that it’s not my job to determine the worth of a particular position to a company. i.e. it’s above my pay grade to decide what a web developer is worth vs a backend engineer, etc.
Judging the quality of someone’s work _may_ be my job if I’m asked for peer feedback, but even there I disagree. I feel it should be up to a manager to determine whether his or her reports are doing good work. (I’m not a fan of peer feedback for a variety of reasons.)
Of course if someone is incompetent, that’s a different matter. How I’d deal with that is too circumstance specific to outline here. I’ve been fortunate in that I can only recall a few such people.
Shouldn't everyone be judging (and improving) the quality of everyone's work in a team, if you want the project to succeed ? How is a manager to judge the quality of technical output other than peer feedback ?