So pray tell, how is it that Chile, which suffered the same sort of counterproductive and ultimately idiotic CIA meddling, ended up being a prosperous Latina American country after the decades passed? Argentina and a number of other states in the region suffered certain consequences of US intervention, sure, but it's idiotically simplistic to blame their complex multi-decade economic woes on this alone, while ignoring these same decades of leftist populism, corruption in general and government mismanagement and all its consequences.
If anything, the boogeyman of the CIA/military industrial complex has been a persistently convenient, singular scapegoat of ideologically charged arguments for such failures for far too long, and it's ridiculous that some people who should know better with more modern evidence continue to take it so seriously.
Chile's a very weird country, economically speaking - I don't think it's a good point of comparison.
I sort of sympathize with your thinking, but at the same time, the problem with foreign intervention, even the subtle kind, is it distorts a nation's political structure by creating client elites that have part of their power base outside of the nation. These client elites then have a power base that waxes and wanes according to the current disposition of the foreign power, so you tend to get very chaotic politics, even if the investment of the foreign power is somewhat small. You have to remember it's not just spooks - it's also an entire ecosystem of people trained in US universities, working for US companies, or even, benefiting from a US-oriented Argentina.
It's a fairly natural consequence of the US being such a big economy, and it's obviously going to create very unpredictable externalities for neighbors (drugs in Mexico, raw materials in Canada, etc).
If anything, the boogeyman of the CIA/military industrial complex has been a persistently convenient, singular scapegoat of ideologically charged arguments for such failures for far too long, and it's ridiculous that some people who should know better with more modern evidence continue to take it so seriously.