You are deliberately ignoring my point. I was talking about vehicles on the morning commute lit up in bad lighting and you know it. Walkers, bus stops and benches are generally not known to progress along a road, flowing with the motor traffic at a similar pace.
Outside That London, walkers are progressing along the road (I've no footway to my doctors', for example - where I lived before, I had no footway to the shop 200m away) and people on bikes are generally not flowing with the motor traffic at anywhere near a similar pace. Even in smaller towns and cities, most of the roads have 30mph or higher limits and that's seen as a target by many motorists, rather than an absolute limit. Compared to their 60+mph, most of us are much closer to the speed of bus stops or benches than motor vehicles most of the time.
I'm pretty sure motor vehicles have rear lights for a reason. Maybe cars didn't have them previously and then someone realised that lights might help to stop people driving into each other at night...
It's more like a sequence of anecdotes about rich early motorists claiming that rear lights would have stopped them driving into whatever they hit. I can't find now the summary of the history of rear lights that I read before, but here's a typical snatch from
Hansard from 2 February 1945:
Rear-Admiral Tufton Beamish said:
However careful one might be—and I have driven motor cars since 1905—one is very often faced with the grave difficulty of seeing a cyclist. Over and over again I would have given anything to have felt more sure whether or not there was a cyclist ahead of me.
And it's with those sort of anecdotes and sentiments that early motorists cursed us all with rear lights and drivers who go far faster than they can see with their own lights.
Absolve yourself of any responsibility on the count of light-based visibility, but then make sure you "ride noticeably."
Sure. If you ride where nobbers are more likely to be looking and are hoping for the best while preparing for the worst, that's far far better than shining a dim red light while riding in the gutter.
That's kind of why I find your stance a tad odd in that you want to do everything else to make yourself visible, ride defensively and take sensible precautions, yet "wasting" a few milliwats of battery power doesn't seem to be a good return on the investment of the lights and a couple of AA batteries.
I feel the costs - including those to people walking and other unlit road users - aren't worth the benefits, which is almost the definition of a bad return on investment. I'll put the headlight on if needed to see and either light on if legally required.