I've read this 3 times and can't figure out what you're trying to say.
Are you saying that rich countries are going to intentionally choose more expensive vaccines, with the intention of suppressing the lower classes?
That's so rediculous. In rich countries (other than the usa) the gov pays for these things not the citizens. Even then, the expensive vaccine is only $40, that's within the means of most poor people.
Not to mention that would screw over the rich people who want to benefit from (vaccine induced) heard immunity.