But she most likely also has birth defects that any ethical breeder wouldn't be trying to exploit. She's probably blind. That, by itself, should make her less than a normal betta because she's not healthy. Albinism SHOULDN'T be bred for. It's not healthy in fish like it's okay in for other animals. It's like breeding for overly large fins that drag bettas down. It's doesn't better the animal, it harms it. This fish would have a much better life if she'd been born a normal, because then she'd be able to fend for herself at least. As it is, she's stuck in a small tank because her breeder is trying to exploit her birth defects and no one wants to take in a fish who's unhealthy.
It shouldn't be encouraged at all.