Sure. The oral polio vaccine was given away for free, undercutting and disrupting any attempts to region-limit its availability. To this day, it's hard to charg

Sure. The oral polio vaccine was given away for free, undercutting and disrupting any attempts to region-limit its availability. To this day, it's hard to charge more than a dollar per dose, and nearly all countries have eradicated or are eradicating polio using this vaccine. Might be hard to find examples that are business-friendly, though; the growth-hacking of a business usually means harm to its customers. The prior polio vaccine, manufactured using Salk's method, had had quality control problems leading to illness in hundreds of vaccinated people; maybe they shouldn't have rushed to market.