True, but there is another subtle motive behind the cluster f**k scenario. The guy I used to work for (as an electrician) purposely sent out his most incompetent crew to rough in a house. It would take them literally weeks to complete, and it was done wrong.
Six months later, when the trim-out crew came back and tried to make things work, they would have to pull new home runs (a real problem in a log house), and rewire half the house.
The boss got paid extra to fix the problems that he himself had created.
When did my first rough-in for this bozo, I took photographs of the whole inststallation before the wall-covering went on. The boss wouldn't pay me to get the film developed, because he wanted the trim-out crew to spend as much time as possible figuring out what the rough-in crew had done.
My rough-ins always worked perfectly the first time. They worked so well that the boss fired me. He couldn't charge the customers extra because there was nothing to fix on the houses I wired.