Why are some successful people unhappy with their lives?

I think many successful people feel unhappy because their definition of success doesn't match what truly fulfills them. They might chase promotions or money, but neglect personal relationships or hobbies that actually bring joy. For example, in Shanghai, I've met senior designers at my company who earn well but seem exhausted-they work late nights but rarely see family or have time for reading, which they say they miss. Success looks good on paper, but if it means sacrificing what you value, it can leave you empty. That's why some high achievers feel stuck-they realize too late that their priorities were off.