By charging $500,000 per dose? You think there are 100k people who would pay that? Also, if this was a cause the billionaires believed in, they could just give

By charging $500,000 per dose? You think there are 100k people who would pay that? Also, if this was a cause the billionaires believed in, they could just give $500,000 to vaccination efforts and also give up their spot in line. Nothing stopping them from just being charitable without expecting anything in exchange.