I'd argue that strident condemnations (ala your "our system is currently working as intended") is actually one of the features of the US political system that tends to create/preserve a subpar status quo: https://twitter.com/JohnArnoldFndtn/status/11063022464493690...
I don't believe that the US has a monopoly on greedy businesspeople or politicians, relative to other countries. But I do find myself wondering if the toxicity of our politics tends to filter out candidates with a good faith desire to serve the public. People who enjoy conflict tend to be jerks.
EDIT -- Here is some specific evidence that US elites are not uniquely rapacious:
A solid majority of Giving Pledge signatories hail from the US: https://gpcatalysis.blob.core.windows.net/gphostedcontent-pr... From the bottom of https://givingpledge.org/
While the US only has 735 of the world's 2640 billionaires: https://en.wikipedia.org/wiki/List_of_countries_by_number_of...