The cold, hard truth is if you don't earn at least that much, you either suck at your job or suck at negotiating. Your bosses and many of your peers earn twice as much as that.
Edit: IF you work in the corporate world. Clearly if you're a lifestyle-biz/consultant working over wifi at the beach in Thailand this doesn't apply at all. In fact, congratulations, if you're this guy, you probably win the game.
If you asked a lawyer, a CPA or a banker if they'd take $100k to work their ass off for a corporate master, they'd laugh in your face.
Edit: It's quite typical of HN when this topic comes up for someone to be downvoted by people who make very little money when they come out with the cold, hard facts. This place is full of millionaires and super-successful entrepreneurs who mostly stay quiet in threads like these. Wake up and smell the coffee.