This is not exclusive to Presidents. We apply the same logic to QBs, CEOs, coaches, plant supervisors, etc. It's part of leadership and responsibility for what you manage or run. After the Eagles game when Coach Brady was not on the field when Gabe ran the wrong way or Josh threw it they wrong way said it was his fault. The CEO of Boeing didn't forget to tighten those door bolts causing it to fall off in flight, but he took the fall. See how this works?