(a) For purposes of section 43 of article V of the state constitution, House Rule No. 21 (c), and Senate Rule No. 17 (c):
(1) A member of the General Assembly shall be considered to have a personal, private, or financial interest in a pending bill, measure, or question if the passage or failure of such bill, measure, or question will result in the member deriving a direct financial or pecuniary benefit that is greater than any such benefit derived by or shared by other persons in the member's profession, occupation, industry, or region.
(2) A member shall not be deemed to have a personal, private, or financial interest in a pending bill, measure, or question where such interest arises from a bill, measure, or question that affects the entire membership of a class to which the member belongs; except that, where such an interest arises, nothing in this paragraph (2) shall be construed as prohibiting a member from disclosing such interest and not voting on the bill, measure, or question.