101-level models in every field elide important details. That's pretty much their whole point. And it doesn't make them propaganda, it makes them a perfunctory introduction.
I cannot think of another subject whose “101” level magical thinking has affected the real world as much as economics, though. At some point the purpose of a system is what it does, and economics 101 affects the political discourse in a way I struggle to find adequate comparisons for.
No, you don't omit the leading term by accident. Not five times in a row from three different angles.
In any case, this is also matter of historical record: the purge of left-wing thought from economics and politics at the end of the New Deal Era was loud and vicious. It didn't stop at ensuring capitalist principles got top billing, it scorched the earth until even the most earnest self-examination of capitalism's largest weakness was cause for cancellation. You bury it, or you wear the scarlet letter. Most chose to bury it, and here we are.
