I see you are referring to
the interdependent Yin and Yang principle where when there is
imbalance in the dynamic flow in either Yin or Yang energies, both
will automatically and continuously balance and rebalanced
themselves.
But I do not think that the principle of
balance and rebalance applies to such values of kindness and
unkindness. Anyway, how does one quantified it? My belief is that,
most, if not all humans tends towards goodness, and that is why the
majority of the human race believes in a religion.
Buddhist thought on the subject of duality is
not about such automatic balance in the phenomenon world. We are
living and surviving in a dualistic world. We need contrast and
comparison to make sense on what is going around us. The moment our
thoughts arise it fastens itself upon one point of a manifold of
undetermined intuition dividing it into two usually unequal parts.
On one side we have the similar things and on the other side the
more illimited dissimilar things. Our thoughts or cognition thus
represents a dichotomy right from the beginning when thoughts
arise. Duality is a fact of our life. There is good there is bad,
there are beautiful things, there are also things that we consider
ugly. It is a relative world, it is dependent originated. That’s
the reality and there is nothing wrong with it. That to a Buddhist
is conventional reality. But it is very important that we must
realize that all things are Dependent Originated, there is nothing
that is permanent and stays the same forever.
The Buddhists are more interest in the
subject of non-duality of subject and object. This is than looking
at transcendental reality. Realizing this reality creates a
different mindset altogether in an individual. One can
characterized it by a person who have developed the ability in
fullness to look at all things and situation in a equanimous way,
beyond what is good and bad, what is right and wrong. Such state
can be reached when the ‘Self’ drops away. The Bahiya Sutta - Ud
1.10 gives a very good description how one can reach such state of
mind.