Consider, for example, if airplanes carried tens of thousands, rather than hundreds, of passengers. Then our acceptable false positive rate may change by an order of magnitude.
Like herd immunity in epidemology?
The really large corporations are mostly immune, because they have the resources to fight the disease from the carriers. Everyone else is subject to ill effects. With luck the carriers die off before they can infect the non-immune population.
When you get more carriers, the spread of the disease increases exponentially.
In case of patents we see two things playing out at the same time: the race to get more bad patents issued, and more actors trying to abuse the existing ones.
The herd immunity is long gone, and everyone suffers.
And no, you can't sensibly distribute the costs of that across the population in a case like this. Patents can be asserted against everyone independently, so a larger population makes things worse, no better, as it gives trolls more victims, rather than distributing the cost. It's not as if patent litigation is over for a patent once they've sued one person (though it is interesting to imagine a model where a patent might be 'exhausted' once the holder collected 'enough' money through litigation).