I agree that whether we like it or not sometimes the best we can do is just try to help. It can become our problem though. Every animal that cannot or is not properly taken care of has the potential to become a bad news story and that is the last thing the hobby needs is bad press.
This statement while maybe being spoken from the heart does not reflect reality. When push comes to shove people will pick the needs of themselves and their families over the needs of their pets. The best that we can do is lessen the chance that the animal cannot be taken care of by ensuring we are financially stable and making sure that we have the time and environment to care for our animals correctly.
If this entire story is really true then whoever the seller is has just as much fault as the op. A very irresponsible sale.