The Nobel Prize-winning chemist who discovered the method for creating synthetic ammonia for fertilizer went on to invent the chlorine gas used to devastating effect by the Germans in World War I. He did it because he loved his native country and believed in their ability to win the war.

In the 1930s, a medical scientist was hired by the leading manufacturers of asbestos products to conduct a study of the health risks. He downplayed the negative effects of asbestos exposure on workers at factories and job sites, believing that American industrial progress and fidelity to authority was more important than the human lives being put at risk.

The scientists who worked on the Manhattan Project to develop the atomic bomb used on Hiroshima and Nagasaki did so out of a sincere belief that they were doing their duty to protect America.

Should these people have stopped somewhere in the process and reflected on what, exactly, they were doing? I think they should have.

Science is not always pure, and technology has a way of finding its own worst use.

I think about these things as I read stories of the mad rush to invent driverless cars. We are due for some self-reflection about whether this really is the direction we, as a society, should be taking.

Google’s Chris Urmson driving down the wrong path.

The scientists and technicians who are developing autonomous vehicles sincerely believe in the potential benefits of their work, I’m sure. They explain how it will bring mobility to the elderly or the disabled, save countless lives by avoiding car crashes, improve fuel efficiency, and require less space for parking lots.

Who could be against that, right?

Except that driving a car is, most of the time, a solitary act. Single-occupant vehicles on any given workday make up more than half of cars on the road. With estimates ranging as high as 76 percent, it is clear that we still prefer to drive alone.

And other emerging transportation technologies, such as the ride-sharing models that are being pushed by for-profit companies Uber and Lyft, perhaps are not as sustainable as they want us to believe.

In this world filled with countless ways to communicate and travel, we are still consuming resources and are more lonely than ever.

So instead of creating yet more ways of being alone, society instead should be putting additional effort into social means of transportation–bicycles, buses, trains and other forms of transit. It is only by looking each other in the eye day in and day out that we maintain our ability to be civil and retain our essential humanity. That, and it uses less roadway.

The driverless cars that some believe will help humankind may instead be individual coffins.