Is Social Epistemology Predictive?

This philosophical discipline puts emphasis in social determinants to knowledge. Social Epistemology poses that human knowledge is a collective achievement. An individual can in the solitude of his mind discern some "truth". Nonetheless that moment could only have happened if prior to that, he was in a human society. One can assume that what seems like his achievement, is actually the product of the work of several people through time.

Here I am interested in the utility of this position. Can we learn something that we didn't know before, because we believe this?

One possible prediction is that scientific work thus guided, many times will lead us to correct results.

Say: there is an astronomic observatory in a town, then more people will know math after many decades in that town, than in another one without that facility.

This is a scientific prediction, in so far as this can be checked and proven right, the socioepistemological statement is predictive.