What does "the same" refer to? Failed to catch the nuance

Context:


Do not, for one moment, think of such Darwinizing as demeaning
or reductive of the noble emotions of compassion and generosity.
Nor of sexual desire. Sexual desire, when channelled through the
conduits of linguistic culture, emerges as great poetry and drama:
John Donne's love poems, say, or Romeo and Juliet. And of course
the same thing happens with the misfired redirection of kin- and
reciprocation-based compassion. Mercy to a debtor is, when seen
out of context, as un-Darwinian as adopting someone else's child:
The quality of mercy is not strained.
It droppeth as the gentle rain from heaven
Upon the place beneath.
Sexual lust is the driving force behind a large proportion of
human ambition and struggle, and much of it constitutes a mis-
firing. There is no reason why the same should not be true of the
lust to be generous and compassionate, if this is the misfired
consequence of ancestral village life. The best way for natural
selection to build in both kinds of lust in ancestral times was to
install rules of thumb in the brain. Those rules still influence us
today, even where circumstances make them inappropriate to their
original functions.