Modern specialization is so extensive that only a minorityof people in a modern economy directly provide goodsand services for immediate consumption, such as food ormedical care. Instead, many of us work in industries thatsupply intermediate inputs, meaning materials, machines,information, or logistical support for businesses that offergoods and services for direct consumption. And evenamong those who work in businesses that provide imme-diate consumer satisfaction, many of us perform admin-istrative tasks to manage or support those workers whoactually serve customers
This passage emphasizes how modern specialization has shifted most work away from directly producing consumer goods and services.