Franklin Roosevelt actually said...

The issuance and control of the medium of exchange which we call 'money' is a high prerogative of government.

It becomes a question of control.

It is right or proper that a handful of people... should have the right, without check, at their own sweet will, to dump Government bonds in...

Our national currency must be maintained as a sound currency which, insofar as possible, will have a fairly constant standard of purchasing ...