How common is this really? I've worked at three companies. One big, one small, one medium. And at all of them I work around 40 hours making 6 figures, and feel

How common is this really? I've worked at three companies. One big, one small, one medium. And at all of them I work around 40 hours making 6 figures, and feel like I'm working more than everyone else at the company. Where are all these 60+ hour workers? Are they making even MORE money?