This is the case for other parts of the workforce. I admire those in service that really work their ass off (drivers, cleaners, cooks, etc.)
From my work experience, about 90-95% of people do barely any work (have tasks that take months). I would get in a team of 15 people and I'd be the only one doing something, everyone else is just making some slides for weekly presentations and not even that. The amount of part-time people that do nothing is even greater. The amount of consultant experts that work for consultant agencies and get loaned to other companies that do nothing is massive.
I think it's the standard way of life in most cities. I do not quite understand why that percentage of the workforce won the work lottery.