Are you familiar with an agrarian-style of living, madam? The main driver of the economy, and indeed people's lives, in such a setting is farming. Industrialization is a shift away from this to a manufacturing-based economy and a reliance on advanced technology. Where a blacksmith on his own might be able to produce only 10 horseshoes in a day, an industrial operation would create hundreds or thousands depending on the size of the operation. This would allow a blacksmith to expand his practice, increase his capital and workforce, and generally find himself in a better living situation than previously. He might find time, as well, to pursue other interests and activities beyond his primary occupation - education, for instance.

The same might be said to happen with a farmer. Where it would take a single farmer an entire day to plow and sow a large field, industrial machinery made affordable by rapid and cheap material and construction costs would allow him to perform the same operation in half or even a quarter of the time.

In short, industrialization allows persons who might otherwise find themselves tasked with significant toil for a particular activity to increase their efficiency while decreasing their costs and time-requirements. This allows them greater freedom for other pursuits, a reduction in injury risk associated with certain activities, and generally a greater overall net income.

[You asked, Luna. Since he's trying to make a point about its benefits, he'll leave out the detriments of an industrialized society for now.]