All of us are helpless in 99.9% of injustices done, because they happen in another place, or because we aren't involved in the affected systems. That fact does not mean that injustice cannot be rectified! It just means we need to encourage those in a position to make a positive change to do so. Don't fall into the trap of equating a global lack of efficacy with a lack of local efficacy.
What I'm trying to say is: don't get disheartened or depressed by the onslaught of injustice you read about all over the world. Take care of the things you can affect, and give moral support to the others doing the same in their region.
So, let's hear it from the Germans! Whatcha gonna do?