An excellent question! Not only is the media neither left or right, but is an instrument of corporate control. If you will please indulge me, let me give you a few historical examples of how we lost our fourth estate:
1) In 1917, congressman Callaway from Texas recorded his research for the Congressional Record (Febuary 9th, 1917, page 2947 - 1948) in the House of Representatives:
"In March 1915, the J. P. Morgan interests, the steel, shipbuilding, and power interests, and their subsidiary organizations, got together 12 men high up in the newspaper world and employed them to select the most influential newspapers in the United States and sufficient number of them to control generally the policy of the daily press of the United States."
"These 12 men worked the problem out by selecting 179 newspapers, and then began, by an elimination process, to retain only those necessary for the purpose of controlling the general policy of the daily press throughout the country. They found it was only necessary to purchase the control of 25 of the greatest papers. The 25 papers were agreed upon; emissaries were sent to purchase the policy, national and international, of these papers; an agreement was reached; the policy of the papers was bought, to be paid for by the month; an editor was furnished for each paper to properly supervise and edit information regarding the question of preparedness, militarism, financial policies, and other things of national and international mixture considered vital to the interests of the purchasers."
2) John Swinton*, a leading editor of note prior to WWI, also passed judgement on the Press at an annual dinner of the American Press Association:
"There is no such thing as an independent Press in America, if we except that of little country towns. You know this and I know it. Not a man among you dares to utter his honest opinion. Were you to utter it, you know beforehand that it would never appear in print. I am paid one hundred and fifty dollars a week so that I may keep my honest opinion out of the newpaper for which I write. You too are paid similar salaries for similar services. Were I to permit that a single edition of my newspaper contained an honest opinion, my occupation like Othello's would be gone in less than 24 hours. The man who would be so foolish as to write his honest opinion would soon be on the streets in search of another job. It is the duty of a New York journalist to lie, to distort, to revile, to toady at the feet of Mammon, and to sell his country and his race for his daily bread, or what amounts to the same thing, his salary. We are the tools and the vassels of the rich behind the scenes. We are marionettes. These men pull the strings and we dance. Our time, our lives, our capacities are all the property of these men...we are intellectual prostitutes."
*There is some controversy regarding whether this Swinton (post WWII) was the same Swinton who was a journalist in 1853. However, an argument can be made that the "150 dollars a week" would be the former.
3) This statement was made by David Rockefeller (attended by Govenor Bill Clinton of Arkansas) at a Bilderberger gathering in Baden, Baden, Germany in 1991. For those who think this is all conspiracy nonsense, please research the Bilderberg Group, then ask yourself why the major news media have not reported on this surreptitious international political body?:
"We are grateful to the Washington Post, the New York Times, Time Magazine and other great publications whose directors have attended our meetings and respected their promise of discretion for almost 40 years. It would have been impossible for us to develop our plan for the world if we had been subjected to the lights of publicity during those years. But, the world is more sophisticated and prepared to march towards a world government. The supranational sovereignty of an intellectual elite and world bankers is surely preferable to the national auto-determination practiced in past centuries."
These are a few poignant examples facing us in the world of globalist control. In the late 1960s, the CIA was implicated in subverting the major news media outlets by having their own assets on the payroll, within the employ, or under the influence of the CIA. This program was called "Operation Mockingbird."
Thankyou for taking the time to read this response.
1917 Congressional Record
Barbarians Inside the Gates by Col. Donn de Grand Pre.
The World Order by Eustace Mullins.