right and wrong are relative terms. the individual determines his or her own right and wrong. when large groups agree on something being right or wrong, it usually becomes the norm.... this however does not make true right or wrong out of it. how do we know we aren't all crazy and the people in the insane asylums aren't normal? we don't, we are just the majority. really you cna't pin there to be one absolute right and absolute wrong. morals and ethics are all determined by human beings. there is no "greater good" that runs through people where they all agree that one thing is right or wrong.

***note: this is all without adding god to the equation. if you put god in, it gets more confusing.