It was quite deliberate on my part. You can partly undo things done to or by living people, not even close to all the way obviously, but you can return things taken, from those that have stolen them, and reasonably minimize collateral effects from that, because any uninvolved descendants of the guilty party either don't yet exist, or can reasonably be assumed to have available whatever resources the perpetrating group had beforehand. When the original victims and perpetrators are dead, though, things become more ethically murky, because you can end up in a situation where it isn't clear who specifically to return stolen properties to, those properties may no longer exist or no longer be useful in the way they once were, the people in possession of them now may both not be involved in the original atrocity and be dependent on them/have nowhere else to go, and the two groups may have had time for mixing to occur or new identities unique to the region to form. That isn't to say that there's nothing to be done about addressing historical atrocities of course, one can still try to offset the impact on the victims descendants, but that doesn't really undo any of the impact on the victims themselves or punish anyone involved, because you can't at that point, justice is time sensitive, it just helps a whole new set of people with negative circumstances that they were born into as a result of the atrocity.