Terje Søviknes seems the closest match to your description. For an adult in a position of power to get a 16 year old drunk and then have sex with them is obviously wrong. It's certainly caused a scandal in Norway: https://exepose.com/2018/02/15/endless-sex-scandals-in-norwe...
You apparently regard the case as one involving "consenting adults", even though you describe the girl as drunk! It does seem that at bottom, the tiny minority of people who think they've found a morally defensible interpretation of RMS's comments are the people who are basically ok with adult men sexually exploiting teenage girls. Or at least, who think it's very important to sharply distinguish these people from "real" rapists.
I assume that the politician you are referring to remains in power because the allegations are (you say) unproven.