Most people need spare time to be happy, productive, not burn out. And as a company or society, you don't want to encourage people to work too hard for money because most people are stupid and will actually work too hard for money, and not be happy, become less productive, and burnout.

That's how it works in Europe. It's common that a boss will ask an employee to work less, because the amount of time they work is not even legal sometimes, or to force people to go on vacation for weeks to use their vacation days. It's also more fair and don't put pressure for other employees that value their life outside work.