If you do it for a full day then yes it is. Whatever your opinion of a job is, if you want it done by someone then that person deserves a living wage.
(btw, I hope I didn't misunderstand your point, not entirely sure)
Walking dogs is not in demand enough for someone to have a living wage, what's that, like 13 USD the hour? That's poverty salary in lots of places. Certainly not enough to make a living if we go by the ethos of the "eat the rich" crowd
I don't know about the "deserving" part as that is subjective.