rescuing animals never came to mind when i wanted a dog and i honestly think it doesnt to most, only when you become introduced to the problem. for me, i saw a picture of a teacup yorkie and i wanted him badly but didnt know what he was at the time. my bf took the picture and asked around for what it was and found eventually found it from a breeder and surprised me with him.
its hard to rescue dogs because most people have certain breeds in mind. i doubt you'd find a teacup yorkie at a shelter. i believe each area is different with abused breeds as well. also, i think most people dont want to go through the long process of adopting. all the paperwork, tests, questions, screenings, etc.
but thats my opinion, if i had the time and money, i'd like to rescue one in the future and keep Remy company.