Nolan et al 2008, investigated whether social influence processes led to a reduction in energy consumption. Hung messages to the front of doors in San Diego- different messages. Energy decreased more in the groups in the group that messages saying most residents were already trying to reduce it. This shows conformity can lead to social change through the operation of NSI.
Nemeth says that minority arguments cause people to engage in divergent thinking which leads to better decisions and creative solutions to social problems. This shows that minorities are valuable because they stimulate new ideas and open people's minds