There are so many people on earth that do not do what is necessary for going to Heaven because they do not know. Out of those people, if there is a place to make money, some look for work to do there. If there is a place to engage in love with opposite sex, some look for work to do there. If there is a place for gaining fame, some look for work to do there. For the rest, they live just being idle saying there is no work to do.
They do not do any work necessary for going to Heaven, which is such an awesome place.
There are also so many people who do not work that is necessary for going to Heaven even if they do know it.
Such people ultimately become people who feel the most ultimately wronged.