This famous example seems to be the opposite of the others you highlight. Reversing lane directions forced people to concentrate more on their surroundings, and be more cautious, not less, unlike seat belts, ABS, helmets, lane assist, and other safety features. Perhaps that is the solution: make the surroundings less safe, so people are forced to pay attention, as many safe streets advocates have been pushing for decades.
Shared streets seem to work on similar lines - removing right of way for traffic, and the assistance of lights, signs, markings puts drivers in a higher state of vigilance almost by default. Personally I'd like to see them far more widely adopted.
Things like lane assist, ABS etc seem to come with a cost. Increasingly for the vulnerable outside the ever more reinforced and protected vehicle.
Some, like lane assist, may eventually turn out to even be counter productive to overall figures. I'm not sure if there's been much research on the real world consequence of many of the newer ideas yet.
It's been studied and shown in the context of shared streets, switching the side of the road your country drives on (Sweden - the accident rate went down markedly), seat belts, ABS, crash helmets for motorcyclists, and in a non motoring context in sky diving and ski helmets.
Those features are a good thing when people do spend more mental energy on their surroundings - yet it's been shown time and time again that they don't. They have extra bandwidth to chat, listen to music, eat a burger and yell at the kids in the back, or send a text message. In other words to increasingly be a passive passenger. That they shouldn't and a few good and diligent drivers don't is irrelevant.
Cars should be built for the majority of their users, not the presumption that everyone acts like a tiny minority.