Perhaps, but in keeping warm in a cold environment, it is activity that generates the heat that keeps one warm, both in the literal sense of movement of some sort to generate heat, but also thoughtful mental activity to take measures that conserve the heat so generated - eat a meal (best if it is heavy on fats), adequately insulating clothing properly arranged, avoidance of wind, and all that.

I have fond memories of a night on [/s]Mt McKi[s] Denali when I drew the short straw and the task of shoveling snow off our tent in minus 80F windchill. Just dressing for the task generated heat, to say nothing of wielding a shovel in hurricane force winds. And there was the night long ago, where I spent all my waking hours flexing my toes in order to avoid frostbite - lots of activity there.

I would agree wholeheartedly with your proposition when it comes to most bureaucracies and their operation