To judge an action we don't need black and blackest, we need black and white. An action can be good or bad. Killing someone is always bad. The situation or circumstances of the killing can be put in black, white or grayish waters. To get people to receive k and become victims of maharaji's scam is definitely black bad. To understand why these people do it you can use all the colors of the spectrum, but not only grays, you have to go from black to white.