There is one minor bit of good in all that. In the lab you breed rodents to be especially susceptible to certain conditions. Makes it much easier to test medicines/procedures on them. Fats are kind of the next step in that. We do end up paying for it. But in the end the majority of what they have is just the same things any of us might have at some point. Just usually WAY earlier than they should. Which can work out well for a human guinea pig.