Inoichi Yamanaka

So why on some pages on clans is "Leaders" listed and others with known leaders aren't. Why does the Yamanaka Clan have Inoichi listed but Shibi Aburame isn't for the Aburame Clan?

Why Ao is not dead If Shikaku Nara, Inoichi Yamanaka and Mabui are dead because of the attack in HQ????????