It's pure math. Working 40 hours a week prevents you from developing depthful, meaningful relationships with your children. You're barely acquaintances. 60+ hours a week and you're physically in the presence of your coworkers more than your family. How are you supposed to develop a deep relationship when you only ever hang out with somebody for 2 hours each week?
Are you not supposed to be friends with your kids? To know their hopes and dreams? To spend late night contemplating life, love, and happiness? Is the role of father really supposed to be “just some guy who pays for everything, is only home on weekends, and spends his time at home mowing the lawn or doing other chores”? Are they really supposed to be more comfortable talking to other people than to you?
How can someone who works 60+ hours a week simultaneously claim to be a good parent? Sure, you provide for them, but you know more about what's going on with your coworkers divorce than in your own child's life.