These things mimic biological systems. Fraudsters are disease and as you have noted threaten to kill the host they rely on. But the whole reason Google has su

These things mimic biological systems. Fraudsters are disease and as you have noted threaten to kill the host they rely on. But the whole reason Google has survived is because they have built an immune system (ad fraud team) and antibodies (fraud detection systems) that keep it moving along. Over the years there have been plenty of ad exchanges that succumbed to the disease and died. That's not to say Google will survive in perpetuity. Disease has a way of iterating and evolving. But big G won't go down without a fight.