I think your question relates very much to Mr. Dechert's previous question in terms of how this population is different. The fact that they come from very dysfunctional backgrounds--poverty, emotional, financial, etc.--is actually in a strange way a reason for hope in working with this population, because they aren't sophisticated, they aren't businesses, and they don't take pride in what they do.
The programs you speak of, and the programs that I think are effective with this population, are the ones that deal with the heart of the matter. The spiritual component is very important: dealing with the individuals from the point of their dysfunction rather than a cognitively based program that might only speak at them, but really engaging them from the heart.
One of the questions that I will often ask these guys is about at what age they would like their son or daughter to join the gang. That question is met with expletives directed at me, because they recognize that they don't want that. When you engage them from the heart versus just the mind, there's a tremendous amount of growth. That's what healing is really all about.