Hold on, the OP is talking about driving on a motorway here. I will put my lights on full beam if I'm on a motorway at night and there are no cars in front of my (heading in my direction). If there are cars on the other side of the motorway coming in the opposite direction I don't dip - why should I? They're 3 lanes (plus the barrier in the middle) between us so it's not like I'd be blinding them. I never have a problem when someone does the same coming in the opposite direction. Just to be clear, I only do this if there are no cars on my side in front of me and also only in the stretches where there are no lights on the motorway. I find it much safer from my point of view to have them on full beam in these cases.