I know few people that made it in shiny businesses (Serie A and Champions League players like Fabio Liverani and Simone Pepe, or Massimiliano Rosolino swimming gold metal at Olympics) and they all absolutely either hated or found 99.9% of their career an endless marathon of mundane boring activities.

I'm not saying there aren't plenty of exceptions of people that like their job, and jobs that may make it easier, but it looks to me that most of people find their job mundane and boring most of the time.