I would say yes it can and its by looking at the good side of bitcoin by innocent users who just want to make decent income doing some basic functions and even rendering their services online and where distance is no longer a barrier. By offering these services means generating income which if gathered over a period of time could substitute for unemployment and in turn reduce the crime people would have delved into in the course of looking for money to meet basic needs.
According to OP, bitcoin could prevent crime if we use escrow, so no one will be screwing anyone in the deal. It nas nothing to do with real life unemployment and living of people. Instead OP is telling us that when we are in a deal, when we use bitcoin, it could prevent a crime.
Escrow could not prevent a dispute when the escrow starts to become biased, who knows, probably one of the two know the escrow and there is already a conspiracy.