I think that, if a fellow guild mate is in need of help, someone must the help them, what ever the issue is, they must help a fallen friend. Because I've asked for help when I needed it. And no one came for my help, even when I begged for it.
Well I think you are right but it will be hard to obligate people to help others. Im not sure if that can work as a rule but we can try to make people realize about how important is to help other members of the guild. :D