It’s a terrible metaphor but if everyone had to stab someone in the morning and the evening in order for the economy to even begin to function, we would pretty soon get over it. Upton Sinclair and all that.
We had a perfectly functioning economy prior to car domination and all the alternatives have progressed by incredible leaps and bounds in the time since as well.
Other economies work just fine with far fewer pedestrian deaths. We don't need to sacrifice our neighbors in the altar of making mo' money.
This analogy fails because there's nothing about our economy that specifically demands that people drive cars that can drive over 150km/h. They would be able to commute exactly the same as they do today, if their cars had speed governors.
What if the economy was built that way by stabbing industry lobbyists?