While I don’t disagree that in the end, the only meaningful measurement is business value, I’m not sure it’s fair to put the value of John’s implemented features against the value of mine. Neither me, nor John had very much say in which feature we get to implement (assuming we are both, say frontend developers. Might make more sense if John is in devops)<p>Those decisions are usually decided from higher up than developers.<p>Maybe John got the job of fixing the advertising embed code in the html template, because he’s a junior and its basically just copy paste from the documentation and since all revenue come from ads, he is now responsible for the most valuable feature.