I'm 0 for 3 with marriage - the scoreboard doesn't lie never has. So what we all have is a marriage of the heart. To sully or contaminate or radically disrespect this union with a shameful contract is something that I will leave to the amateurs and the Bible grippers.
The warrior may fight for gold or for an immediate gain or for something to take home for the winter to feed the family. The soldier is part of a more complex society. He's fighting for a group ethic of some sort.