Contrary to the widely held notion that being politically correct has a generally stifling effect, the results showed that a politically correct norm actually boosts the creative output of mixed-sex groups.
These results highlight a paradoxical consequence: A term that has been used to undermine expectations to censor offensive language as a threat to free speech actually provides a foundation upon which diverse work groups can freely exchange creative ideas.
"Political correctness facilitates idea expression by reducing the uncertainty that people tend to experience while interacting with the opposite sex," Goncalo said. "The PC norm, by establishing a clear guideline for how to behave appropriately in mixed-sex groups, made both men and women more comfortable sharing their creative ideas."
As someone who works in a multi-cult, mixed blue-collar/white-collar environment, I don't see how it would be possible to get by without various speech codes and behavioral restrictions.