Why did large company in foreign countrys have the leaders of those country inated?

in the 70's in Bolivia, a American company that i cant remember the name of was taking a lot of land and natural resources from the Bolivian people destroying the economy and causing many problems, when a specific politician in Bolivia which i cant remember his name was elected who promised to make the company leave his country was inated by jackles after refusing to negotiate, they covered up the ination with a plane crash, in panama another indecent like this happend where the leader of that country was killed in a plane crash, and a more recent incident, Saddam Hussein, portrayed by the media as a "terrorist" refused to allow American country's to drill in his country they tried to negotiate with him, and eventually tried to assassinate him or get him overthrown but these failed as he was once hired by the us government to help overthrow a previous leader and knew all the tactics and techniques used, eventually the us government fabricated some evidence and invaded his country thus captureing and hanging him.... these acts are done simply for the money, but why, isn't America about freedom or is that what your thought to think, what your brainwashed to believe