As I've said before, the purpose of the misinformation is not to be solely at the expense of Trump, but at the expense of the US as a whole. Remember, none of the Steele data was a "smoking gun" as such. Given that none of the data was verified at the time of release, there was nothing in it that would have caused a Trump-voter to change his vote. I don't know how much the average voter even heard about the Steele Dossier during the final months of the campaign, but how could the Dossier hurt Trump if even ideologues like Don Lemon would have to admit that nothing in it was verified?
Again, you find all this incredible because you totally subscribe to the idea that the Russians believed Trump would be better for their "geopolitical interests." I submit that Russia may have wanted you, and intelligence agencies generally, to believe that in order to sow discord. That may well be a reason that Trump failed to show what his critics deemed sufficient "loyalty" to American intelligence sources at Helsinki. Why would he "kowtow" (as Iguanaman put it) to the FBI, given that they were selling, with whatever justification, the narrative that he Trump was a Russian stooge?
Do you, incidentally, see any evidence that Trump has made things better for Russian geopolitical interests?