"Well, in wars, just like bar fights, there's two kinds of bystanders. First are those who take sides no matter what the outcome. They have a stake it in... could be family, philosophy, money. Who knows? Then there's those who just sort of naturally glide to the sideline, waiting to see which way the fight tilts. Them? Their most over-powering urge is to look like they came out on the winning side in the end. Both are natural human conditions. You see it everywhere. The stakes determine.
Warning! It's very long, but worth the time it takes.