Industries cannibalizing themselves through competition is very common. If pharma was a monopoly, then they wouldn't want to cure cancer. But pharma isn't a mo

Industries cannibalizing themselves through competition is very common. If pharma was a monopoly, then they wouldn't want to cure cancer. But pharma isn't a monopoly, so the incentive then is to reduce the size of the pie as long as they get to eat the entire pie themselves.