Even the unicorn startups don’t always work you to the bone. Honestly, I see it more like many people who /want/ to do that end up in that position because they want that stuff. It makes them feel like they’re doing something with their life (usually because they have an empty life outside of work).

I mean, think about the effort it takes to get into some of these companies. You don’t do it because you’re just a regular person who wants a well paying job. You’re career oriented - your career dictates your life satisfaction. That’s why you’ll work yourself to the bone - because it’s what you wanna do. This area attracts that mentality massively.