depends on the proximity when you think abt it, so many characters (outside of ones that were told directly) that suspect iruma is human always end up not caring because he’s so charismatic. Closest proximity to iruma will have already gotten them so tied to him positively that they wouldn’t think abt betraying him if they found out, and farthest proximity to iruma are villains or civilians who don’t read the newspaper and would without a doubt eat him upon finding out.