scrambles are great when drivers actually obey the lights. in my experience there's always a car who is watching the cross-direction lights, and drives through the intersection as soon as it goes red.
At least in that case they're starting from a stop, so they can't be going all that fast through the intersection. And yeah I can't say I've every seen that happen.
Probably in countries with intersections where the turns lack signals. In the Netherlands most of the time you can't even tell which colour the other signals have, because they point in the direction of the oncoming traffic they are for and have a cover that blocks light leaking out beyond that.
It does happen here in Belgium, at least in Antwerp. But I have to say this is the worst place I've seen in Europe regarding traffic rules violations, and people routinely drive on red at the slightest excuse.