hiring people to destroy wealth is deficit spending and inflation. not sure where you're getting the "later time" bit.

this sort of jobs program is just welfare with the caveat that you have to be somewhere 40 hours a week. this helps workers save face. but the result is the same: value is being taken from one group and being used to prop up another. whether society as a whole benefits from such a safety net is a whole nother argument and I won't argue about the rightness or wrongness of such a plan here. but trying to transmorgrify the issue to obscure the means and ends is awful.