I slow my speed according to road conditions. Some folks may have a problem with that so let them pass.
I find it interesting that most of the vehicles I've passed that are in the ditch are SUV's - yes - no kidding. I assume the drivers believe that since they have SUV's they are safer at higher speeds.
A couple years ago hubby and I were car-pooling and we had a bad storm. We were driving accordingly (as were the other cars in front and behind us) and this young fellow in his SUV roared past and gave us a dirty look. I smiled when 2 km. further on he was well and truly in the ditch. I waved as we passed. (Nasty I know, but the devil made me do it.) I don't drive like a little old lady by any means, but common sense and road conditions should certainly be taken into consideration during the winter.
I also drive a standard transmission which I find gives me more control on ice and snow.