Hmm

So, it's the same as blowing yourself up for your faith.

No. All sorts of idiot suicide bombers don't blow themselves up for someone, but against someone. They are trying to kill people, and they specifically choose not military personnel, but civilians, those who, by definition, will not harm anyone (although it is difficult to harm a terrorist, whatever you do to him, it can't get any worse). That is, they are not saving people, they are not even helping their fanatical group, but simply senselessly killing themselves and taking others with them, completely random people.