There are too many drivers that shouldn’t be on the road. Even when there were very few cars the accident rate was high. How the move away from rail service to trucks and cars has affected the population and habitat is an entirely different conversation.
As far as car companies being scum. All the innovation in car improvements have come from the car manufacturers not the government. Auto manufacturers have suffered from the propaganda of the liberal media just like all other profitable business. It was Ralf Nader that launched the campaign against the car companies after all. The major reason car companies resisted compliance was an effort to keep government regulation out of their business. Eventually over regulation is going to occur. Currently car companiesare are way out in front of safety regulations exceeding all requirements because of competition in the marketplace.