Wilderness, or out camping with items that can break?
Pure wilderness camping, pliers not useful much.
But...
Used my pliers all the time when Uncle sent me to the field. Cutting wire, stripping wire, tightening items that had come loose, crimping det cord into a cap, pulling staples from boxes, splinter removal, and a bunch of other minor chores. I fixed a broken battery cable with a basic first generation Leatherman.
Better to have them and not need them ...