Because those most likely to be infected are those with the least political influence. Globally, the rich are much less likely to get sick, because they live in

Because those most likely to be infected are those with the least political influence. Globally, the rich are much less likely to get sick, because they live in much more sanitary environments, expose themselves to infection less, and have consistent top tier healthcare to prevent infection. Thus the people who need it least are those who both have the money to potentially fund it themselves and the social power to make representatives care.