Hierarchy of the Sect (Spoiler)

Applicants: Not joined sect yet, strength varies.

Outer Sect Disciple: Between the Qi Condensation Realm – Foundation Establishment Realm, most of the disciples are here.

Inner Sect Disciple: Between the Peak Foundation Establishment Realm – Core Formation Realm.

Outer Sect Elder: Peak of the Core Formation Realm, former Inner sect disciples.

Core Disciple: Nascent Soul Realm. Considered the future pillars of the sect.

Assistant Elder: Strength Varies, at least Core Formation Realm. In charge of the sects internal matters.

Guest Elder: Strength Varies, strong people taken in from outside the sect.

Sect Elder: Nascent Soul Realm

Core Elder: Peak Nascent Soul Realm. The core of the sect, have a certain degree of influence inside the sect.

Vice Sect Master: Strength varies, at least Nascent Soul Realm. Helps the sect master manage the sect.

Sect Master|Head -> Strength varies, Domain Lord Realm at least (Feng Chen needs to work harder...). Main person in charge of managing the sect.

Grand Elder: Domain Lord Realm. Part of the peak strength of the sect. The sect master is not above a Grand Elder in terms of status and a sect master will normally become a grand elder after giving up his position as sect master and focusing solely on cultivation. 

Ancestor: (for future)