Every domain you've enumerated is but a niche. Computing domain is a behemoth next to other domains, since computing itself is at the center of it all when the software is eating the world. Yes, they have their importance, but they are also mere bricks that built the current state of the world, next to computing becoming the mortar that holds them together. Dismissing computer illiteracy as inconsequential, (or at least comparing its importance to something like "shipping routes") in a world where computing systems are (in one way or another) everywhere, it's... just puzzling!