I would argue that citizens of poorer countries haven't had much opportunity to support their societies to enable them to develop vaccine technology as they had no money, and we all know that can of worms. One comes out of the other. We're very lucky to live here in a stable environment, in comparative wealth, and with relatively easy ways to make a decent living, so 'paying for it' is kind of built-in - you can't choose
not to pay for it, for example.
Also as we're seeing elsewhere, underfunding and underdevelopment just brings everything crashing down, and in the terms of a pandemic, poorer countries with low-budget or non-existent healthcare are far more likely to generate endless new mutations and variants, as we're seeing now. And they will come into the country and
potentially wreak havoc with our vaccination programme, and our manifestly unfit population. Unlike most South Africans, who are younger and skinnier demographically, and more likely to survive long-term.
So yes, I think everyone
should be considering compromising their chances of survival for somebody else, because the previous methods based on selfishness are clearly not working. It's an investment in our futures as much as theirs, especially if we all want (apparently) to do foreign travel as a lifestyle experience again. Doesn't have to be 100% compromised - what about just 90%?