You are right, that doesn't. But history won't remember that. History will consider the powerful and the victorious as right. There's no Karma checker.
History may now be being written by different people than in previous eras. In oz, 100 years or so of pro British army brainwashing was undone with one line in one movie.. shoot straight, ya bastards.
I humbly disagree with you though. There are many instances where heinous acts by the powerful have gone unpunished. Many of them by the US and Britain. They have had no repercussions on the perpetrators because of power.
This is the Digital Age, not the age of the scribes. History will be laid out in much more excruciating, and correct, detail. People might have to do some work to find the right pieces in the sea of information, but it will be there for those that want to know the truth.