Particularly for wild camping. The presence of any one piece of equipment is inversely proportional to its necessity.
Or, if you need it for a successful trip it won't be there; if you don't, it will be deadweight in your rucsack.
And on the subject of deadweight, if you find yourself with an enthusiastic leader who sets a blistering pace it's always a good idea to put a sizeable rock in their pack at the earliest opportunity. It's also a good idea not to be around when they find it.