Well here is where it becomes relevant:
Your employer is paying you approximately $250,000 to be somewhere tomorrow for about 3 hours. If you NEED to be somewhere else at that time, then you need to be and that must be respected. But now if this is a choice, if its about you and you take the man's quarter of a million while declining to even give him your three hours...there are competing responsibilities involved here. Being a standup guy demands you sacrifice your wants when somebody pays you good money to do so and do your best to earn it. It means you work hard, miss your kid's soccer games, maybe have to cancel the romantic relationship strengthening anniversary dinner you had planned for your wife, etc. But you agreed to do a job for a lot of money, and so you sacrifice those things as part of the responsibility. You don't say sorry, have to miss the game tonight because I think Jr. might take his first step, or little Sarah has her big dance recital.