When a company sends USD to a bank account in Argentina, the bank must to convert that amount to "pesos argentinos" (ARS), using the "official rate". You can't get USD transferred to your account from other people than yourself (or a company owned by you).
Right now the "official rate" is 110,5 ARS for each USD, but if you sell your USD (using crypto or in the "dark market") and get ARS, you'll get 222,5 ARS for each USD.
And that's before the taxes.