While I 100% agree with your point, as someone who has:
5 dogs
2 cats
5 chickens
2 ducks
13 cockatiels
& 4 budgies, anyone with pets knows vet costs can literally be a bottomless bucket, even insurance has limitations, so there's always a chance that costs will outstrip "resources", but that shouldn't mean an animal can't get the life & love it deserves ?, especially rescues.
On a similar vein, very shortly after a friend's sniffer dog was retired from the police, he unfortunately broke his leg, but had it been a couple of weeks earlier, the forces insurance would have covered the 8k+ bill, instead poor doggy lost his leg.
Hardly seems fair, but then neither does families having to pay for their sons funeral when said son dies in Iraq or Afghanistan, as was the case all too often. 😢