War is money. Money buys power. "With great power comes great responsibility money".
It's all about money and power. Money equals power.
We're dominant species. We fight to gain power and spread our ideologies, no matter if people think they're good or bad.
Just wanna say that you're not totally right.
Money is different from power. In our current society, which is a rather peaceful one whatever one's could argue, money is deeply linked to power.
But when a society crashes, then we go back to the basics. The power, the real power, is the number of humans fighting, and the weapons they have. The people can, at anytime, in any of our civilized country, revolt and put down the head of the state to create a new order.
But well, where you're right is that "can" and "they will do it" are totally different, as long as we actually believe that money = power it will be the case :/