Friday hunt good boar , bad lady

I wonder why the foks out there do gooding for dogs never have issue with folks for having obese dogs? I would rather see a fit dog showing a little rib than an obese dog. Less health risks. I have a 13 year old purebred who has outlived every other dog I have ever owned. He is chronically on the thin side no matter how much he eats or how much you worm him. He isn't emaciated, but if that yella dog is "starving" then my purebred needs to be rescued too. Do gooder lady can bring back that yella dog and take my dog in on trade. Then she can see first hand that some dogs just don't carry "housedog weight" no matter what.

Cheers
M