Hachinan tte, Sore wa Nai Deshou! - Ch. 90 - Revival of the Weigel family

[Grikath]

I don't think this is an unreasonable conclusion at all, but you have to remember the other person in the room is a fuckin' Cardinal of the Church. I'd imagine his weight alone as a witness is many leagues ahead of his harem, regardless their own titles.

Yes, but don't forget all of MC's wives, and most of his retainers, are part of noble families of their own... And not the least at that..
They're there as representatives of those families showing support of the proposal.
There's a good reason Rückner is sweating. He's given little choice but to accept, lest one of the Ladies goes crying to Daddy/Uncle if he is obstinate about the matter or tries to haggle.