I'd also like to say: who knows what else they've done for their cause? Just because they were arrested for this, it doesn't mean they haven't sent things to their friends and others. It's kind of hard to make an assumption like that.

And yes, they are there to serve God, but everyone has different ways of expressing that. I would think sacrificing your comfort to make a statement against killing human beings would be pretty consistent with Christian/Catholic doctorine.