Nissan knows that the Versa is more dangerous to their customers than, let's say, a Mercedes S500. Should Nissan then stop pushing the Versa in order to protect customers?
I'm sure this argument is along the lines of what Facebook employees must tell each other so they can sleep at night.
But let's be clear, Nissan is making a car that is as safe as they can make it for consumers at a certain price point. Safer than riding a small motorbike. Safer than crossing a road. Or many other alternatives. They're enabling and empowering consumers that can't afford better cars to have some measure of mobility and safety.
Facebook, on the other hand, designs features to manipulate emotions and harm consumers. Make them feel bad, stay engaged, worry more, buy more. They ran the numbers. As long as the increase in suicide count is under a certain threshold, it's not a big deal for them.