The clearest such case historically is food production: what share of the population is dedicated to feeding the population, vs. literally everything else? https://ourworldindata.org/employment-in-agriculture shows that this has declined enormously over time, and I’d describe that as the defining feature of modern industrial civilisation.
(though I think that your question is somewhat ill-posed and ‘extra value’ is almost undefined, it’s still pointing to some interesting questions about the structure of the economy)
The clearest such case historically is food production: what share of the population is dedicated to feeding the population, vs. literally everything else? https://ourworldindata.org/employment-in-agriculture shows that this has declined enormously over time, and I’d describe that as the defining feature of modern industrial civilisation.
(though I think that your question is somewhat ill-posed and ‘extra value’ is almost undefined, it’s still pointing to some interesting questions about the structure of the economy)