Is Value of Life ChNAged with time?

At the night hours of a day, i was watching a classic Tamil movie in sun tv just the day after I watched a recent Indian movie in the theatres. The way in which value of life dealt was entirely different in movies those days and movies these days. Considering the fact that the movies are reflection of life. Loyalty was meant to be a normal thing those days and betrayal was a occasional incident. And today we people search for loyalty and trust has been the costliest thing in the world and act of betrayal and lies are normal. Even relationships were given a great value those days and these days we talk of right of homosexuality and justify pre marital and post marital affairs.

Thinking on these lines reminded me Darwins theory of evolution. His theory was derived from the basis of five observations.

1) Species have great fertility. They make more offspring than can grow to adulthood.
2) Populations remain roughly the same size, with modest fluctuations.
3) Food resources are limited, but are relatively constant most of the time.
From these three observations it may be inferred that in such an environment there will be a struggle for survival among individuals.
4) In sexually reproducing species, generally no two individuals are identical. Variation is rampant.
5) Much of this variation is heritable.

This states that the foundation is widely the same but, his theory also states that there is constant improvement in the species. Is the human species of these days are more prone to face disappointments and keep moving ahead.

I happen to meet people and it was very interesting learning their perception of life. which was widely "if you feel like doing it, do it" which was revolving around a selfish circle and respecting only their selfish motives. Is that... our own human species have changed and evolved to a new version of species? Is that we need to accept that this is a change and move forward or hold and keep reminding ourselves and others the value of life?

In today's world according to my view human life is dominated by greed and lust and the value of real life will soon be a dream of mankind. and may be movie makers instead of shooting a sci-fi movie will be shooting a movie based on value of life, which we generally term it as circle of life.

Whatever may it be. I strongly believe we have options to lead the life the way we want to lead. Lets choose the option which has got a long-term benefit rather than fulfilling our short term desires.