Hand in sloppy work as the leader and you’ve just lowered the bar for everyone with a single upload.

Standards are set by the worst thing that passes without comment, and when that thing comes from the front it passes very loudly. Everyone recalibrates immediately, not out of spite but because they now know what is acceptable here. It takes one rushed submission to undo months of asking for care.

Read the next thing with your name on it once more, with the eyes of the person you would be criticizing. If it is not good, either fix it or say plainly that it is rough and why. The admission costs less than the example.