I assume its by distancing side-effects from personal responsibility. iIt's one of the many reasons favoured by highly intellectual people that lack empathy - it is based upon perfect rationality and assumption everyone is rational like them.
>Well for one, we would attribute behavior we don't want in society to genes and/or the expression of those genes in a particular environment. Future treatment would be to note this, remove it from our genome, and see if said behavior is gone.
show empathy? It means not giving people chance to live or murdering them in cold blood because they genes that aren't deemed perfect. We already had this in our civilisation and remember it as one of the most terrifying events in our past.