Is Ethical Consensus Always Ethical?

Ethical consensus often sets guidelines to society as to what approach or act is a "good" and yet should that be the way ethical decisions should be made? Yesterday, on vacation in Morro Bay on the central coast of California, I found the group of seagulls which I photographed and it struck me at the time that they were making a graphic point regarding an issue that I brought up with the discussion of ethical consensus as written in the thread “Good People Doing Bad Things for Good Reasons". The black and white birds were headed and looking one way. The single colored bird was headed and looking the other way. Could one say that the black and white birds were part of a consensus and the colored bird was not? And if so, were the black and white birds looking the "right" way and the colored bird was not?  It is just this dilemma regarding the product of a consensus particularly when the way a person or society itself is guided to either the "right" or "wrong" way based on that consensus.  Or should we consider instead the direction set by the colored bird? ..Maurice.