I know this thread is old. Anyway, I "rescued" a betta yesterday from Wal Mart and I certainly don't think it was wrong.
Your original post did have an arrogant, slightly attacking tone to it, that I found to be rather debate worthy
Do understand I'm not "attacking" you but I would love to put in my two cents into this argument, even if it is a week or so old.
If you don't care about the many, how can you care about the few?
How can you care about the well being of "the many" if you cannot spare a precious moment of your time to save those "few" that are suffering? Especially since those that are suffering ARE part of "the many" you seek to save? There cannot be "the many" without there being "the few".
EVERY animal has a right to a home. It might not seem to you like you are discriminating against the animals in pet stores, but you are. Not just the store. There are loving animals out there who deserve a home, even if they are in a pet store. Even if they do need to be "rescued".