I like how Iruma acknowledges that his desire to not let anything or anyone slip through the cracks is greedy, it shows that he's not as naive as some people make him out to be, and it works with some of the traits that demons look for in their leaders. Yeah he might be working in a manner that seems selfless because Iruma desires everyone to be happy, but even that can be a source of greed, in a sense, because it's still what Iruma desires, sometimes at the expense of others (those that want the status quo to remain the same, for example.) It's an interesting concept really, selfless greed, it seems contradictory at first, but it makes sense when you consider it from the perspective of someone that finds joy in the happiness of others. Honestly, Iruma's acknowledgement that his path is quite greedy makes me even more interested to see the final confrontation with Kirio since this means that Iruma knows he's not acting on some grandiose hero's path, but his own personal self-interest in seeing Kirio return to the club.