Question: How is human being the product of society?
Answer: We are the product of society because we are social creatures with an inherently proud, self-serving and self-justifying nature.
This means that we constantly have to prove our superiority above others.
Which means we constantly compare ourselves to the rest of society, copy, emulate what others are doing, what others have in order to get ahead of others.
So we constantly “infect” each others with desires, values, goals, aspirations. At the end we are nothing else but a “unique, personal computer screen” displaying all the data, program we receive from the environment we live in.
Thus our only free choice regarding purpose in life, qualities we clothe into is in choosing the society, environment that will mould us.