I think the most destructive thing about this hack is the fact that they are the largest telecommunications company in Argentina which will result in to their reputation plummeting because of this.
They are asking for too much and they are never going to get it. For far fewer amount, the victims can hire someone from Kaspersky or Norton and get their files decrypted. During the WannaCry attack, the ransom demands were much lower, usually in the range of $200-1000. BTW, this is the same group (REvil) which demanded a $42 million ransom from Donald Trump a few months back. I don't know whether Trump paid the ransom or not.
That is most likely that is going to happen. But how long are they going to decrypt this? Is it worth losing all the time or it's more worth to just pay the ransom? If they are out of commission for weeks/months or so, I wonder how will they handle their customers since they are largest telecommunications company in Argentina. It's a good thing that their service hasn't stop though.
But if they were to pay the ransom, will the hackers let it go?