> Of course the idea that career success and influence should be based on demonstrated ability and effort is ancient. But once you start building a society based on that idea, you run into Goodhart's law.

Do you have any evidence for that? Aside from the thought-terminating cliché "it was used by Marxists once" ?

(Upper) middle class culture, where parents try to give their children a favorable start in life, which often involves a lot of effort. Such as buying a home in a good school district or helping them gain admission to a good university.