I beg to differ, because I have been close to that process quite a bit. Real manufacturing require major capital investments that are beyond the reach of the middle class, except when many middle class people get together to pool money - but then someone has to manage and direct that enterprise because there is a LOT to it... and the investor and financial management class is reborn.

Plus what about very successful entrepreneurs who go about diversifying or starting new business?

For who could be free when every other man's humour might domineer over him? - John Locke (2nd Treatise, sect 57)