That is absolutely terrifying! I've been guilty of overworking both as my own employer and under other employers. The human body is not made for sitting at a chair in front of a pc for 70 hours a week with so many deadlines you are always frantic. It's not healthy! I think it's worth taking a less stressful job and have more free time than take a high-stress but high paying job.

As my own employer I have the luxury of enjoying a day off when I want it. I have commitments to some degree, but if I want to sleep in or work extra late I have that flexibility. I make a lot less than my corporate job I had before, but I have enough to live off of. And that's better than so much stress.