Like yawns and smiles, stress is highly contagious. Who deserves to seem stressed out, when simply dealing with a stressed out person is stress in itself.
I don’t believe stress would be a sacrament so much as a form of penance, like self-flagellation or recitation of the rosary. We already lack significant leisure, and we often work on the suggested (required) days of rest. Could you could effectively argue that we as a society have replaced, or combined our religious duties with our work week to minimize that which is demanding? Maybe that would explain how “hard-worker” became analogous with “good Christian” in the American political lexicon.
We are not our profession and the acquisition of a more desirable position is not the same as self-improvement. Yet, just as every Catholic bears their mythical cross; every hard-worker chews their literal antacids.