Well, I don't know, I saw an epsiode where a young hispanic boy with mutiple diseases was charged with killing his sister at the end. The sister had been concieved by the parents to serve as donor of sorts (blood/ bone marrow etc) for the brother who was utilimatley dying. He was sick of it and what it was doing to her.
Anyway, at the end of the ep, he was in the hospital chapel when Grissom came in to confront him with the evidence.
The brother was glad he was caught, he knew he would never live to serve his sentence. Grissom uppon seeing him praying said something to him about his God and the whole situation about not killing himself (a sin) but murder was forgivable - can't remember the exact wording) whereas the kid replied ' but you are doing God's work, whether your realize it or not, for you speak for (and defend) those who cannot speak for themselves.'
Like I said I can't remember exactly, but it gave the Grissom character pause for reflection of that statement. It was something he did not expect; I thought it was well done.
It's a TV show. It can mimic a worthy discussion or present a drama that has depth, but can't really achieve it for a lot of reasons.