kettlechip - you hit the nail on the head. The issue everyone on this thread has to decide about is right there in this phrase:
"the financial rewards don't always compensate for the lack of quality family time"
In my case, I took a massive downshift in my standard of living, but a massive upshift in quality of life, by giving up work. We moved out of London and am lucky to have seen my kids grow up every day. Not everyone can, I know, but some could and still plough on with terrible working hours.
Sometimes, it takes the woman in a relationship to take her man aside and simply tell him she is prepared to take the hit on the standard of living so he does not have to do the work he does. I have a few female friends that have done this, saved their marriage and quite possibly the life of their DH.
There is no truer statement than "no one lays on their death bed and says I wish I had stayed in the office longer."
Men are under incredible moral, personal and emotional pressure to provide for their family and sometimes it takes the other person in the relationship to 'let' them shed that burden. It has taken a male friend of mine a decade to come to terms with that decision - it was very hard for him as he felt he had failed his wife and kids.