It did little to save the 60's/early 70's minority generation who were drafted. I saw them first hand. The ones who were drafted who already had a solid grounding did well. Those who were crapweasels coming in were the same going out, same for a lot of the whites who were sent to duty by judges or who were drafted. Most of the latter category just came out being better versed in wielding a weapon in the commission of a crime. Discipline best benefits those who are willingly receptive to it from the start.
I can't disupute your first-hand experience....I guess I was looking for some "redemptive" discipline. I guess it doesn't work that way, from your experience.