Another excellent point. One of my friends said he carries for those reasons: in the event he has to spend days in the wilderness due to an unforeseen incident. I get it. I also asked him if he uses anything like a SPOT or inReach and he looked at me like I had three heads.
I use an inReach, and have for a few years now from Baja to Iceland, Ecuador, and all over the remote West. I've sent and received over 300 messages without a single failed communication. So, in the event of some bummer in the woods, I'll likely get saved by that little widget than anything else. So, if you carry a gun for those reasons, I would advocate an inReach as well. Way more effective. You can have help on route in minutes, and it needn't be full blown SAR.