Money is NOT value. Joining a money system has nothing to do with value, but with a common tool for EXCHANGE value, in a fair way between members.
So when you give me money you give me nothing of value? Why would I trade something of value for nothing of value?
If money had no value then giving someone money is pointless.
If you argue that money is just a temporary "credit" and its value is realized when it is "spent". Then giving someone money is equal to giving them what ever they decide to buy with that money.
Thus your system money is used to facilitate exchange of value from those who hold the money to those who receive the new money from nothing.