[Epistemic status: fairly speculative. Practicing throwing out less-polished ideas as shortform. Might tidy up and promote this to a frontpage post in the future.]
I'm hardly the first to note that COVID-19 is a disease of ageing: from the beginning of the outbreak it's been clear that older people were dramatically more likely to experience severe illness or die as a result of infection, while death rates among under-30s have been extremely low. In an important sense, COVID-19 falls in
This is a really interesting point. An additional consideration is that global leaders tend to be older, and hence more at risk (cf. Boris Johnson). You could imagine that their deaths are especially destabilizing. If the longtermist argument for preventing pandemics is that they trigger destabilization which leads to, say, nuclear war, the age impacts could be an important factor.