Moreover, if you see other people around you doing less, then you’re under no obligation to do more than they do. Even if you prefer doing your job well, on those days where you’re not up for it, don’t feel bad about doing less. As long as that doesn’t affect how your immediate manager/supervisor/boss evaluates you, do what you need to.
And let them do what they do. And if they get away with it, that’s not up to you to remedy. Employment can be as simple as an agreement to do the minimun needed for them to keep paying you as little as they can get away with. And we’re not likely to fix that problem today. 😉