There are a few exceptions to this, with varying degrees of justification:
1. An underperforming teammate when your personal rating is tied to team metrics. Which is a shit way to run a team.
2. You are a tech lead in a company where the career and level expectations are that you will assist in performance managing ICs on the team. Which is being a manager in all but name.
3. You truly care about the personal performance of these "slackers", which is a good sign that you want to be on the management track, but probably shouldn't be.
4. You have some strong external incentive like slackers directly impacting the values of your shares (and you own enough for it to make a difference)
5. You are a petty asshole.
I will never cease to be amazed how many people will fall into number 5 - but will insist they are doing it for other reasons.
1. An underperforming teammate when your personal rating is tied to team metrics. Which is a shit way to run a team.
2. You are a tech lead in a company where the career and level expectations are that you will assist in performance managing ICs on the team. Which is being a manager in all but name.
3. You truly care about the personal performance of these "slackers", which is a good sign that you want to be on the management track, but probably shouldn't be.
4. You have some strong external incentive like slackers directly impacting the values of your shares (and you own enough for it to make a difference)
5. You are a petty asshole.
I will never cease to be amazed how many people will fall into number 5 - but will insist they are doing it for other reasons.