I've seen it more as a thing people one-up each other over and use as a way of looking down on people. Like "you sat at a desk for 40 hours and you're tired? So lazy. I just ran a construction project that was 4 weeks of 12 hour days, no days off." Like yeah, that's impressive, but your job's physicality and long hours don't invalidate other forms of labor and the exhaustion that can come with it.