Consensus
We are really strongly focused on consensus. One criticism of Wikipedia is that the majority rules. But majority is not the right way to describe it. We strive for consensus rather than majority rule. If you are in a group of five or ten people working on an article, if 30 percent of those working on the article dissent, then continue to write the article until all but the most unreasonable agree. Those who continue to disagree are typically exhibiting non-collaborative, and sometimes abusive, behavior.