Barrie Faires writes:
"God (?) forbid that it should cost me anything to save a life! "
Perhaps I misunderstood your point but as someone who has volunteered in the rescue "endeavour" for a lifetime, when an animal is placed FTGH without an adoption fee, it may be deemed as having no value.
A neglected animal placed in a foster home will need care... and despite the universe being a giver of abundance, vets don't wait for the universe to pay the fee.
Everything we do in life costs us. It may cost us energy, or compassion, time or money. So if you DO save a life, it WILL cost you something. It is always worth the expenditure as the reward is 10-fold.