Isekai-gaeri no Yuusha wa, Dungeon ga Shutsugen Shita Genjitsu Sekai de, Influencer ni Natte Kane o Kasegimasu! - Vol. 4 Ch. 14

[GrizzlyMelon]

He should have used the Hypnosis to have them "leak" all proof and documentation about their misgivings, what he did in this chapter is essentially give them a slap on the hand, but this is a Japanese manga and god forbid the lower classes opposing people in a higher station in life.

Hate to say it, but you're right. It's even worse since we know MC can be cold and pragmatic.
Initially i thought he was attempting to make them "dissapear themselves" in the dungeon, but it turns out even that was not the case for some reason. And those mfs had to get saved in the nick of time too out of nowhere.

It's really fucking annoying.