Oldmanwillow said:
But there are good ones and bad ones. Would you say that a bum has equal value to a medical researcher. The bum just lives off the expense of others while the medical researcher live to improve the lives of others.
Just because we have technology doesn't mean that we should abandon natural selection. Because if non longer have other species to compete with because our reason and technological prous means that we need to actively compete more with other humans to improves our selves as a species. There is always room for improvement we should never stop trying to improve even if its possible to achieve prefection.
Following your logic, there wouldn't even be a
need for medical researchers, since all those who are too weak to survive an infection ought to die off, anyway.
Why do we have society? Medicine? Laws? Politics?
To
abolish the laws of nature, to circumvent them, to make life worth living for
every human being.
Of course there are always those who contribute more and those who contribute less for whatever reason. That doesn't mean they forfeit their Human Rights all of a sudden.
Who knows how the bum ended up where he is today?
How many of them are war veterans?
Honest labourers who lost their job and home because of an economic recession?
What separates us from cruel, uncaring nature is the ability (and usually also the drive) to help our fellow man. Because that's how we are programmed, genetically we are
meant to live in a society, in a group of people who protect each other (think of our close relatives, apes). And even without that, our society is based around a certain set of rights and ethics (not necessarily based on religion, either), which should be guidelines for how a society works.
And as I said, natural selection hasn't been valid for thousands of years. Why reintroduce it now? Look at what we have accomplished by
disregarding the laws of nature, by becoming
superior (at least in my opinion) than the animals we breed, slaughter and consume.
All of these things were possible
because we build a society, because we made it possible that people could specialize, become philosphers, researchers, engineers...
Humans
aren't natural and it is
good that way.
Also, note that evolution is never directed towards improvement but at "fitting" into the current circumstances. Our circumstances of living have changed since we left the jungles of Africa, therefore the direction of our evolution has changed as well. There's no need to arbitrarily intervene and wipe part of the gene pool from the Earth just because you have different ideas of value than the next guy.