Except as provided by chapter
42.52 RCW, no member of the board and no employee of the board shall have any interest, directly or indirectly, in the producing, processing, or sale of cannabis, useable cannabis, or cannabis-infused products, or derive any profit or remuneration from the sale of cannabis, useable cannabis, or cannabis-infused products other than the salary or wages payable to him or her in respect of his or her office or position, and shall receive no gratuity from any person in connection with the business.