publicly traded institutions, maybe?

This is a strawman. The OP didn't mention trusting private institutions over public institutions, just that you can't ever trust American public institutions to do the right thing for you before being dragged kicking and screaming. What the poster says is true. Living in the US is coming to terms with "every person for themselves" is reality, and that it "does not square with the material wealth of the US". You can trust public institutions to some extent more than private, but interacting with them is still all about fending for yourself. Being familiar with the American government and living in another country that treats its citizens much better (at least for daily operations and processes) opens your eyes to how bad it is. It's a horror how much money the US has while failing to invest the majority of profits back into raising standards for everyone. Dozens of countries do better with much less.