Who wins? Who loses?

The urge to protect one's own territory has been present in man and beast alike since the dawn of evolution. This is a well known fact.
Cats scent-mark their territory by rubbing their faces and flanks against objects (never knew this. My cat always used to do this to me! :D)
Birds and gibbons defend their territories by either visual or auditory means.
While in the animal kingdom, defence of territory rarely takes the form of overt fights, it is not so in the human kingdom.
It is when this urge becomes an obsession that the urge to protect becomes more than just that. You transgress and then there is chaos.
A beast is born. A beast who is unstoppable and like a juggernaut picks up pace and flattens all that comes in his way – be it the innocent or the criminals that invade his space.
Now the question is – what do you get out of all this? A land to call your own? A territory to be marked and proclaimed as 'my land'? At what cost?
This is the modern age where war is one country affects not just the people there or their neighbours but every one else.
Consider this.
Terrorists blow up a pipeline in the middle east. What happens next? The price of petrol shoots up all around the world. Cooking gas becomes dearer.
Israel attacks Lebanon. And then? Countries all over the world have to send in their ships to move their people to safety. The air ways of the neighbouring countries are jam packed. The normal routines of millions are disrupted, not to mention the lives of thousands and the emotional turmoil of the people.

I recently read this article on the net which proclaimed

GE was one of the first companies to recognize the business opportunity in counter-terrorism and has spent over $4 billion since 2002 to acquire smaller business to take a bigger slice of the $160 billion global security industry.

Recognise the business oppurtunity in counter terrorism!!! God! How can you be so cold when saying something like that?
Terrorism opens businees doors and oppurtunities to so many companies – now that is really something new!
Someone makes better weapons and then the next individual markets a way to get over this. Now – that is what humanity is all about, isn't it?
Instead of proclaiming this so proudly, why don't people find a way to break this vicious circle? Coz as far as I can see while the common man on either side loses out, it is only these businessmen who still manage to laugh all their way to the bank.