Success at Work, Failure at Home
So what I'm reading here is why CEOs shouldn't go to the office on weekends and check their mail at dinner.  What's glaringly absent from the second part of this article is not asking the engineers to come in on weekends, either.  Those guys have families and their negligible equity certainly doesn't justify 80-hour weeks.  It sounds to me like the author would rather have gone home on weekends while the engineers stayed at the office.