When work interferes with life, it can result in employees getting burned out and decreases base morale in the office. While this may not be an option for employees, it proves that everyone needs time away from the office.
Interesting, Stevenson and Wolfers also find, a clear role for absolute income and a more limited role for relative income comparisons in determining happiness. So stop comparing yourselves to everyone else and be happy.
This is in part due to the fact that people who have children differ, on average, from those who do not have children in ways that are related to happiness, such as in their marital status, age, and income.