I don't know. Work fairly, certainly. Work hard... what's the point?
So in some cases you want to fast track your advancement in a direction that you like and this possible through this method, and you actually can work hard, so in this case take the chance if you want to. But that kind of situation is quite rare, I think.
Also certainly do not appear to be working too lightly. But also do not appear to be working extremely hard if it is not the case.
And remember, the (perceived) results are more important than actually working hard. It can be very unfair sometimes, because e.g. if you have to maintain and add features in a legacy codebase, (poor, but that's common) higher-ups may be uninterested with your difficulties caused by the spaghettis of your predecessors, but well life is just unfair I guess :P
I think it really depends on the person. It's a very common problem for people to procrastinate or drag their feet on the parts of their job that they don't particularly like. (Just like most students drag their feet doing homework they don't like.) But no job (or school program) is ever 100% fun stuff, and being able to delay gratification and get the unpleasant parts done is a super important life skill that not everyone has. For a lot of people, maybe most HN readers, this is basic stuff that they nailed in high school and never had a problem with after that. But I'm not sure that's the majority experience.
So in some cases you want to fast track your advancement in a direction that you like and this possible through this method, and you actually can work hard, so in this case take the chance if you want to. But that kind of situation is quite rare, I think.
Also certainly do not appear to be working too lightly. But also do not appear to be working extremely hard if it is not the case.
And remember, the (perceived) results are more important than actually working hard. It can be very unfair sometimes, because e.g. if you have to maintain and add features in a legacy codebase, (poor, but that's common) higher-ups may be uninterested with your difficulties caused by the spaghettis of your predecessors, but well life is just unfair I guess :P