If you work a lot like this lady does you do not really have much time to reason about how you spend your life and whats important. It just happens to you. But it becomes all encompassing and consumes the person. For some thats the right way to live their life, for most not so much.
FANG has a problem in that they have a lot of highly paid individuals doing nothing or very little, so they have a lot of time to sit around and get depressed about it.