I've often said on HN that people are a great deal more rational than we give them credit for. We stink at
explaining our rational decisions, but they are often quite rational.
In this case, brutally rational... at least in a very short term sense! I of course agree with everyone here that at the conscious level, I would love to prioritize bikes, motocycles, and pedestrians. But I don't drive at the entirely conscious level, and neither does anyone else. A lot of driving occurs at much lower levels.
This is not all bad; if we were all driving at fully conscious levels, we'd all be driving like student drivers all the time. That's what "fully conscious driving" looks like. It is not a desirable thing. It would be much worse than what we have now. Nevertheless, the fact that the rest of our brain is involved means that we must also consider the negative side effects of using our lower systems, and one of those side effects is that it is going to be, by default, intrinsically focused on avoiding immediate negative effects like pain, and much, much less focused on long-term considerations like "what we did to a stranger" or "how long we'll be in court". These systems just don't have a long time preference. Heck, what we are pleased to call our "conscious" minds aren't always all that great at balancing long term considerations.
You can blame these systems all you want, but that's not going to change anything about them.
My personal cognitive hack is to try to see them as walking lawsuits, and feeding the lower parts of my brain lurid, emotion-laden images of what will happen to me and my family if I do hit one of those things out of negligence. My conscious mind really is rather worried about one moment's negligence wrecking everything. It's... better than nothing. But I'm still not really speaking the subconscious' language. It may be "subconscious" but that doesn't mean it's "stupid"... it knows I'm lying if I try to claim that I'm going to be physically hurt if I hit them.