Each individual decides who is to the right or left based on his own perception. Most of us probably think we are the paragon of fairness. Everybody else is off the mark.

It's not unlike flocking behavior, in which we want to be in the human flock and not too far from the center. Nor do we want to precisely duplicate our nearest neighbors. But not too far, either.

In truth, most of us are rightish on some things and leftish on others and confused on a the remainder. The mass movement of the flock determines which bird 'leads'.