Truly successful companies have the ability, as a team, to handle disagreements during a debate and then reach a consensus at the conclusion of the discussion. Scott McNealy, the visionary CEO and cofounder of the computer technology company Sun Microsystems said it best when he coined the quote “Disagree and commit; agree and commit”.
In context, the process of decision making is made up of two parts; the first being during the discussion where a decision is reached and the second one is after the decision has been made. During the first phase, it is the obligation of the company leadership to open the floor to contribution of ideas from all participants irrespective of their “rank” in the company hierarchy. In turn, the individual participants must contribute to the debate. When the discussion is over and the decision has been made it is the duty and obligation of each person on the team to embrace the outcome and support it without reservation.
You can find an interesting perspective about this principle in: http://jesusgilhernandez.com/2014/11/28/amazon-13th-principle-have-backbone-disagree-and-commit/