The Weapon of Mass Deception (WMD) is more powerful than the fiction Government. If you can control the WMD/MSM, you have total control on the election process. You will never get the keys to the White Hose unless you can be controlled by the people who control the WMD/MSM (say the candidate for POTUS isn't an natural born citizen). Better for the gang who control the media to have someone else to get the blame, and have a new puppet in the office every 4 or 8 years. Members of the gang almost never changes. Just make sure the head of Government is one of the controllable guys.
I don't agree with the need for all these real killings in these operations. Real killings are not good. As long as the operation is based on fake news reports only, they will very likely be protected by the First Amendment as free speech. With real killings in these operations, everyone could become involved in a conspiracy to murder with no Statute of Limitations. Would also make it harder to recruit people to these operations. And usually, they don't have to kill anyone. Just make up the guy instead and REPORT it. Almost everyone will believe the story anyway. I promise.