The Dollett exam is the first example that you, the player, are...

The Dollett exam is the first example that you, the player, are not necessarily playing a hero. There are a few times throughout the mission where you are not necessarily greeted as a hero. It also doesn't do a great job of vilifying the soldiers you plow through. The rest of the game expands on this through various speeches about the difference between the decisions of right and wrong and the decisions of picking a side. It threads through the overall theme of love, because love is rarely a question of right and wrong.