Of course, the implication of being tossed in this gully is that nobody was taking care of your dead body.
If somebody cared about you, they would instead have put your body in an enclosed tomb for a year to decay. After a year they would come back and gather up your bones and put them in an ossuary. The tomb could then be used again later for another friend or family member.
So in that sense, "go to hell" means not "die and be punished," but "die and be forgotten."