Exactly, in Argentina the situation is similar. The problem is that no body wants bolivar (or pesos) at the official rate because is unfair.
Bitcoin can help to make that more fair and here is an example. An example is a person that works for a company abroad from Venezuela . If he does what is supposed to do, he will get paid in dollars but with a wire transfer but the local bank gives bolivar at the official rate only and won't be able to buy dollars back.
On the other hand there is always another person that needs to get dollars, to travel or to pay something.
One way to solve this issue is with Bank accounts abroad, the first person get paid on an account in a bank outside Venezuela, then he wire to the second person acc abroad. In exchange the second person pay in bolivar at a good rate to the first one. In the black market it sometimes call "wire dollar" or cable dollar.
Bitcoin can makes this easier because is more tangible, you can meet someone at any place and move the bitcoins from phone. It requires less trust between the parties.
The money always go where it wants to go, there is no way to regulate.