How do the angel and the spider-woman show the overall meaning of "A Very Old Man with Enormous Wings?"

The angel and the spider-woman -- a giant tarantula with
the head of a woman -- are both examples of seemingly supernatural creatures that are
treated with contempt. Instead of being astonished by these creatures, people use them
for personal profit and treat them like animals. They are both confined and under
constant observation, without personal privacy; they are closer to scientific
experiments, except that no one takes such an intellectual
view:

At first
they tried to make him eat some mothballs... in the end [he] ate nothing but eggplant
mush.
[...]
Her only nourishment came from the meatballs that
charitable souls chose to toss into her mouth.
(Márquez, "A Very Old Man with
Enormous Wings,"
salvoblue.homestead.com)

The
meaning that can be taken from these two unfortunate creatures is that humankind no
longer cares to take a spiritual view of the world. The angel in particular is taken in
stride by almost everyone who sees it, and they react not with surprise and awe, but
with amusement and disgust. The overall meaning seems to be the loss of spirituality,
and the change from religious meaning to mundane meaning. Instead of inspiring religious
fervor, the angel inspires its keepers to make money from pilgrims, and so any moral
lesson it could have taught was lost.