Money in a drawer doesn't really detract from any national investment. It's just paper.
It's the allocation of capital that matters. Land, machinery, and so on.
The extent of this is that if money sits in drawers not being spent, it represents diminished demand, which suppresses prices; the government can then print a corresponding amount of money to allocate capital towards other purposes. Leaving money in the drawer means delaying until another day your vote for how national resources should be allocated.
It's the allocation of capital that matters. Land, machinery, and so on.
The extent of this is that if money sits in drawers not being spent, it represents diminished demand, which suppresses prices; the government can then print a corresponding amount of money to allocate capital towards other purposes. Leaving money in the drawer means delaying until another day your vote for how national resources should be allocated.