The wealthy elite have set up a system of government and finance that generates their wealth. it’s called capitalism. It exploits the work of millions and siphons off the wealth they produce into the pockets of the few.
The trouble is that they own the media and can undermine any deviation from the system they run.
Hence socialism is demonised and any country that dares to experiment with it is actively undermined, destabilised and held up as an example of how socialism always fails.
In whose interest is it for socialism to fail? Follow the money.