And if they get 62 qualified applicants for one opening? (Yes, that happens; I've had it happen.) Do you expect that all 62 will get an interview? Sorry, can't happen. No one has the time or the resources to interview everyone who applies, or even everyone qualified who applies.
I have one friend who interviews the first five qualified applicants to apply, and that's it. She'll only go on the the remainder if she doesn't feel any of those five are the right fit for the position.
It's unfortunate that they didn't call you, but they didn't violate any laws.
BTW, if your sister works for them, that may be why they didn't call you. Some employers won't hire new employees who are related to people already working there due to a potential conflict of interest. And that's perfectly legal too.