1 a : circulation as a medium of exchange
b : general use, acceptance, or prevalence a story gaining currency
c : the quality or state of being current : currentness needed to check the accuracy and currency of the information
2 a : something (such as coins, treasury notes, and banknotes) that is in circulation as a medium of exchange
b : paper money in circulation
c : a common article for bartering Furs were once used as currency.
d : a medium of verbal or intellectual expression … neither side possessed any currency but clichés … —Jan Struther
Not a single mention of stability or regulation. What is mentioned is medium of exchange which is exactly what is happening in both scenarios of the meme.