(1) Except as provided in subsection (2) of this section, every society authorized to do business in this state shall be subject to the provisions of chapter 48.30 RCW relating to unfair trade practices.

(2) Nothing in chapter 48.30 RCW shall be construed as applying to or affecting the right of any society to determine its eligibility requirements for membership, or be construed as applying to or affecting the offering of benefits exclusively to members or persons eligible for membership in the society by a subsidiary corporation or affiliated organization of the society.