I'm probably using exaggerated word again, sorry, not native speaker.
I'm just questioning why "Live comfortably" is an axiom. It's a natural human desire, yes, just as other animals, but I'm not so sure we should maximize that as a society. Many exciting and proud things I did in my life were outside my comfort zone.
E.g. a lot of drug addicts can vouch that their current comfort zone is not what they would want, but there's no one around to force them through tears and sweat to change it. Same thing can be said about sugar or, I dunno, comfortable cars. (I'm exaggerating again :)