There are lots of reasons not to take a pay rise, especially if the expected workload isn't worth the salary. But even then, it might be worth considering what the following path might look like. Sometimes, we aren't paid what we are worth, but it is a gateway to getting paid a lot more.
People are pretty shortsighted in general.
I agree. I think the benefits, and the potential career advancements are usually worth it. Once one steps on the managerial path, I think there are a lot of options available.