I haven’t been in that situation, but here’s what I would do if I were: First I would listen to why the majority felt the way they did. Then I’d decide whether I needed to reconsider my position. If I still felt strongly about it after hearing their side, I would try to persuade them to come over to mine. This candidate knew better than to dismiss the question just because he couldn’t draw on his experience to answer it. Rather than make something up, he tells the interviewer what he would do if he were in that situation. His answer shows that he is flexible enough to try to see things differently, but strong enough in his convictions to not automatically go with the crowd.
Never Say: “We were designing our new brochure and I thought yellow and purple would look great. Everyone else wanted to go with burgundy and blue. Since I had the most seniority, they had to do it my way.” Flexible? No. A bully? Maybe.