If you were stranded on a Island with a group of strangers, what would you be able to provide to the group?
good cook?
medically trained?
good fisherman?
good with your hands?
an entertainer?
are you the reality check person that has no hope?
etc.
Personally, I think I'd be the one building all the shelters (being an Engineer) and getting the signal fire going (being an Eagle Scout).