Earlier quoted context omitted.
The idea is that the public projects increase everyone's wealth by a greater amount than the interest on the debt. If you take money out of the equation and just consider that we have a large pool of labor to make use of, government's purpose in spending on projects is to allocate some of that labor towards long-term goals that no company would involve itself in as the pure profit potential is too risky, distant, or…
This might be true. However it's fact that poor people lose the most from inflation. Which is better?
If you have a large 401k on the other hand it deflates the value of your retirement savings. You may have to work in old age.