Nowadays, it doesn't seem to matter quite as much. Maybe I have become more mature, or maybe my running ambitions are not as lofty. For whatever reason, even if I can't run because of injury, I still generally drag myself out of bed at an ungodly hour on a Saturday morning to join my fellow Terrigal Trotters. If I can, when they head out for the scheduled run at 6am, I head out for an hour's walk so that I'm getting at least a little exercise, and won't feel quite so guilty when I tuck into my traditional post-run muffin and milkshake.
My running injury is very much a "First World problem". I may be currently frustrated, but I know I have been exceptionally lucky during my running life and mixing with other runners (and non-runners) helps limit the self-indulgent introspection to which I can become prone, and perhaps did in the past.
I did manage to walk 6km this morning, but still with low-level pain in my right arch. Despite pledging to myself that I would not resume running until the pain was gone, I am now thinking about walking and jogging tomorrow morning just to see how it goes. I'll make a final decision when I get up tomorrow morning.