The exchanges between people are often rif with personality issues, dysfunctions, and the climate we're in when its happening. The author considers this but stops half way in order to lead the reader to some strange conclusions.
Its an interesting thought to consider that the young man was ripe for the 'advantages' other all around him were taking. But, throughout it is clear he held on to one concept... he had a tight grip on his developing understanding of right and wrong.
He seems to have seen some very wrong things and was grasping at a standard of truth.
The military, however, now knows that there are those who will act on even the smallest instincts to do what is right. We all may well need to consider the reality of the MIC, as opposed to the patriotic shit they spew to cover their meanderings over the line of warfare, or, at the very least, stop pointing fingers at other nations and standing there behaving so saintly.
Manning is being railroaded to cover up some very 'bad acts'. That alone puts him in a category uncertain hero, rather then traitor.
That much is sure.