Perfect replication is the enemy of any robust system... Lacking a central nervous system - much less a brain - the parasite is a simple system designed to compromise a very specific target host. The more uniform the host, the more effective the infestation.
But if they're so successful, why haven't parasites taken over the world? The answer is simple: they have. We just haven't noticed. That's because successful parasites don't kill us; they become part of us, making us perform all the work to keep them alive and help them reproduce.
Mammals of every species indulge in play. Games are Nature's way of preparing us to face difficult realities.
Nature, Human, Games
As it stands, our patrols and bases are just targets, and the more firepower we use, the more enemies we make.
War
Wealth aggregates and becomes political power. Simple as that. ‘Corporation’ is just the most recent name for it.
Power, Money, Wealth