It's true, anyone arguing in favor of the current 40 hour work week is just plain wrong, and you poor saps putting in 70+ hours just aren't getting to live life. Life is meant to be enjoyed, not spent at work. Work to live not live to work.
How many people can say the spent a year and a half backpacking around a continent? Working 70+ hour weeks made that possible for me. Working those kind of hours made it possible for me to enjoy life more.
I wouldn't be interested in doing it anymore now that I have a child and I have a decent paying job where I work 40 hours/week (well, I teach about 15 hours, the rest is just sitting in the office playing on my phone). However, if I was still single and without a family I would definitely go back to working the 70+ hour weeks just so I could do even more travelling. Work 70-80 hours/week for 4 months so I can have 8 months off to travel and do whatever the hell I pleased is worth it no matter what way you look at it.
Thats a fair trade off.
But the point is most people don't make that trade off. They keep logging long hours and live to work and nothing but that.