I went camping last weekend up in the Salmon-Challis Nat. Forest, beside the usual camp stuff, you bet I had a .357 on my hip the majority of the time, I had a .454 in the tent and a .35rem lever gun in camp. Overkill? Probably quite a bit of it, however I was in Wolf/Cougar/Bear country and I had my 70lb pit-lab mix and my 4month old 25lb Weimaraner puppy with me. I know how territorial wolves can be and while I feel comfortable taking a shot with my 4" revolver at a wolf as it stands off with my dogs, my fiancé isn't, hence the rifle. Its all about being prepared. Once my puppy is fully grown, I will feel more comfortable, but will still prepare for the worst possible outcome.
I fully well understand that my preparedness level verges on overkill, but that applies to more than just firearms. I typically bring 3 or 4 utility knives for different functions, a backpacking stove that can burn anything from white gas to diesel and gasoline in addition to my Coleman 2 burner camp stove, lifestraw in addition to my MSR Waterworks filter, etc., etc. I feel much better being prepared for anything that I reasonably feel could happen and can prepare for vs. being unprepared for what I fathomed might happen, but shrugged off for the sheer value of a little convenience.
I don't typically criticize people that don't carry, that is their choice. Doesn't mean that I shouldn't prepare to the level that I feel comfortable. Different people have different comfort levels, I have found mine.