Turning away from mankind

There was no Wonder Woman in Batman v Superman: Dawn of Justice. Disappointed with mankind’s warlike nature, she had left them behind. While we weren’t sure what she meant at the time, we do now.
At the end of the movie, Diana brings the War to End All Wars to an end by stopping Ares. Men drop their weapons, the armistice is signed, and she believes that she has saved mankind from its biggest threat. However, as Ares said, mankind was its own worst enemy, and came up with all sorts of ways to cause mass destruction. He just sat, and he even campaigned for peace.
Ares’ death didn’t stop the wars because conflict is a major part of man’s nature. Diana was disappointed that mankind’s failure to learn this important lesson allowed for a century of war, so she left man to himself.
