I don't consider just a job to be an insult. I would be horrified it they did it out of some other reason. I would particularly hate it to be a favor on their part -that creeps me out.
I just believe that distilled down - that is all it is just another job-a not particularly difficult or taxing job to be sure but a job - they are not unique or special outside of the job and the people who hire them are not particularly unique or special. No one is to my view of life. I love my pets and they are the world to me -but to everyone else - objectively -they are just regular non-special dogs and cats. It is not a bad thing.