“Mocho Timche, I think we can all agree that siyata dishmaya from the brocho of a godol to a good person is an incentive to shlaimus. That makes sense. It is unfathomable to compare that kind of syata dishmaya to putting one’s foot over that of his kallah for the purpose of dominating her in the matrimonial home.”
Let’s review: “is an incentive to shlaimus” – That’s not what pshat in a bracha is, though true in and of itself; a bracha is actually a powerful mystical tool with real tangible effects in the Hasgacha of HASHEM on the world what HE will Make happen.
“It is unfathomable to compare that kind of syata dishmaya to putting one’s foot over that of his kallah for the purpose of dominating her in the matrimonial home.” – Since every form of segulah, bracha, etc works in the same exact way – ie affecting what the Hashgacha in the world will be, what metzius will be in the world and in what state it will exist and what interactions will occur – there is no difference between the these two things except for the mechanism that is causing the change in metzius.