That's a great example actually, because the reason you can't get anywhere without a car these days is marketing campaigns by the automobile and oil industry. First by suggesting the newly necessary road safety standards and ridiculing people for being in the street without a car ("jaywalking") to the point that it was criminalized, then by sponsoring enormous displays about the glorious car-dependent future at multiple world fairs (GMs "Futurama" holds the attendance record at 5 million visitors to this day), shutting down streetcar companies via lobbying and acquisitions and eventually even providing the US secretary of defense, who then used the defense budget to bulldoze inner cities to run highways through them. A development that caused the US to have the highest car dependence, car ownership and transport emissions of any large nation today.
So yes, I think it's fair to say there was a bit of artificial need created here.