Sub-contractors do their job, regardless of how much damage they do to the property or other sub-contractors work. Sloppy is much faster than working neatly and SO much easier.
Burn the framing putting in pipe? Can do.
Break waste lines back-filling the septic. Can do.
Bust holes in the walls laying carpet? Can do.
Knock down fencing laying a sidewalk? Can do.
Fall through the ceiling installing insulation? Can do.
Crush the landscaping replacing the roof? Can do.
Break the exterior stucco installing wiring? Can do.
I'm much more annoyed when they can't even do their own job well. Like the concrete crew that extended my driveway in Sunnyvale and couldn't align the expansion grooves with the existing ones. How tough would it have been to make the grooves one inch away from where they put them? Apparently, too tough.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk