Jonah Lehrer said this quote

Even when alternative views are clearly wrong, being exposed to them still expands our creative potential. In a way, the power of dissent is the power of surprise. After hearing someone shout out an errant answer, we work to understand it, which causes us to reassess our initial assumptions and try out new perspectives. “Authentic dissent can be difficult, but it’s always invigorating,” [Charlan] Nemeth [a professor of psychology at the University of California at Berkeley] says. “It wakes us right up.