What is the purpose for the covert agencies representing the States in over-throwing other Democratic Govts?

Question

Many they have replaced w/tyrants like Allende/Pinochet.

Answer 1

CIA supports rebellions to overthrow governments that are not friendly with the US Corporations.

"I spent 33 years and four months in active military service and during that period I spent most of my time as a high class muscle man for Big Business, for Wall Street and the bankers. In short, I was a racketeer, a gangster for capitalism. I helped make Mexico and especially Tampico safe for American oil interests in 1914. I helped make Haiti and Cuba a decent place for the National City Bank boys to collect revenues in. I helped in the raping of half a dozen Central American republics for the benefit of Wall Street. I helped purify Nicaragua for the International Banking House of Brown Brothers in 1902-1912. I brought light to the Dominican Republic for the American sugar interests in 1916. I helped make Honduras right for the American fruit companies in 1903. In China in 1927 I helped see to it that Standard Oil went on its way unmolested. Looking back on it, I might have given Al Capone a few hints. The best he could do was to operate his racket in three districts. I operated on three continents."
Smedley Darlington Butler (July 30, 1881 – June 21, 1940), nicknamed "The Fighting Quaker" and "Old Gimlet Eye," was a Major General in the U.S. Marine Corps and, at the time of his death, the most decorated Marine in U.S. history.

Answer 2

It was 1973. We were engaged in this little thing called the Cold War. You might have heard of it.

It was not in the US national interest to allow another Marxist government in the Western Hemisphere.

Answer 3

Unfortunately, the CIA has been run by a bunch of not so nice
politicians in the past.
I Cr 13;8a

Answer 4

CIA supports rebellions to overthrow governments that are not friendly with the US government.