This is a good question. Let me give a few points.
First, we need to realize that all cultures are socially constructed. This means that people make culture.
Second, we need to realize that all cultures have things that are more or less plausible based on the commonsense reality of each culture. For instance, belief in monotheism is plausible in Saudi Arabia, but not very plausible in New York City. Why? Each culture is constructed differently.
In light of these points, you can help implement change by understanding how plausibility structures operate. In addition, you can help people to see that their sense of plausibility is socially conditioned. This can create the change that you might need. In this least, this perspective will cause people to think.