I don't know if it's necessarily more primitive to mock people for contributing to the community, but most primitive societies do have a sense of "elders" or what have you, "those people who've been around for a while, and saw it all happen." They don't get any extra points for that, but it is generally acknowledge. User ranks as an indication of how long someone's been around, I think that works. But just like a real primitive society, that shouldn't translate into influence. The words of a "newbie" should carry as much weight as those of a "sr. member."
(BTW, I'm pretty sure those are the default ranks, so it's mostly just a matter of not having done anything with them yet.)