So I understand this correctly. Lets say you are perfectly happy with your wage. It provides with everything you want in life. Things get busy at work, and you are the only person that can help, and it means you have to work an extra 10 hours that week. You'd probably want that 1.5x pay for the inconvenience, wouldn't you? You shouldn't have to work 50 hours every week of your life, but if you get the opportunity, you are free to take it. It's an opportunity.
You don't need a disney vacation, but it's nice to have one. It's nice to have the financial freedom to afford one. Some times you have to work extra to afford the luxuries you'd like but not need.
If you'd rather work consistent 50 hours a week at disney rather than 40 hours a week at Megalomart with the same take home pay, you are free to do so. Some people do enjoy work, and enjoy being at work. Some people enjoy working at certain place more than others, even though the compensation may not be the same.