It's a great point, and one that could be rectified by their teams actually having standards. Threats can't be empty. "Deliver early, we'll give you a bonus. Deliver on-time, we'll pay. Deliver late, we'll hold you accountable and pay less according to this attachment. Deliver really late, and you get a strike. Three strikes and we drop you."

Of course, that would require backbone, fortitude, accurate forecasting, integrity, and management support.