You could have infinitely many (and, in principle, even more than countably many) instances of finite goods in an infinite universe/​multiverse, or lexically dominating pleasures (e.g. Mill’s higher pleasures), or just set a lexical threshold for positive goods or good lives. Any of the goods in objective list theories could be claimed to be infinitely valuable. Some people think life is infinitely valuable, although often also on religious grounds.
I’d interpret supreme soteriology as claiming finite amounts of Earthly (or non-Heavenly) goods have merely finite value while salvation has infinite value, but this doesn’t extend to infinite amounts of Earthly goods, and other theories can simply reject the claim that all individual instances of Earthly goods have merely finite value.
I don’t claim that these other possible infinities have much to defend them, but I think this applies to supreme soteriology, too. The history and number of people believing supreme soteriology only very slightly adds to its plausibility, because we have good reasons to believe the believers are mistaken in their beliefs and the reasons for their beliefs aren’t much supported by evidence, but anything that’s plausibly a good at all could be about as plausible as a candidate for generating infinite good, and maybe even more plausible, depending on your views. There are many such candidates, so they could add up together to outweigh supreme soteriology if they correlate, or some of them could just be much easier to achieve.
You could have infinitely many (and, in principle, even more than countably many) instances of finite goods in an infinite universe/​multiverse, or lexically dominating pleasures (e.g. Mill’s higher pleasures), or just set a lexical threshold for positive goods or good lives. Any of the goods in objective list theories could be claimed to be infinitely valuable. Some people think life is infinitely valuable, although often also on religious grounds.
I’d interpret supreme soteriology as claiming finite amounts of Earthly (or non-Heavenly) goods have merely finite value while salvation has infinite value, but this doesn’t extend to infinite amounts of Earthly goods, and other theories can simply reject the claim that all individual instances of Earthly goods have merely finite value.
I don’t claim that these other possible infinities have much to defend them, but I think this applies to supreme soteriology, too. The history and number of people believing supreme soteriology only very slightly adds to its plausibility, because we have good reasons to believe the believers are mistaken in their beliefs and the reasons for their beliefs aren’t much supported by evidence, but anything that’s plausibly a good at all could be about as plausible as a candidate for generating infinite good, and maybe even more plausible, depending on your views. There are many such candidates, so they could add up together to outweigh supreme soteriology if they correlate, or some of them could just be much easier to achieve.