Not at all Fraggony
Something we call "law of nature" is not the same for everyone. Every society has his own "law of nature". Some of there "laws" are similar, some "not".

For example according to Christians every people are equal in face of God and all of them have same opportunity for Heaven. Thats why attacking other people is bad (attack happen but are generally bad).
According to muslims - God love some people more than other. Thats why allah must conquer the world.
According to Jews - God love Jews much more than other. Like previous.

Religion generally sums up most important things for nation or for faithful's. For some cultures life is most important, for other not (like Samurai).