Assume you have 30 electrical devices in operation. Assume the cost of your house is $1mil. Then avoiding that fire should be worth ~$13 per device. However, the device manufacturer would not need to bear that cost, meaning it goes unpaid.
Woman on Plane : Are there a lot of these kinds of accidents?
Narrator : You wouldn't believe.
Woman on Plane : Which car company do you work for?
Narrator : A major one.
Even to the point where an actual horrific accident doesn't necessarily mean that vehicle is any more dangerous than other vehicles on the road, they just don't have that exact failure mode but do kill people nonetheless.
And no amount of money is going to buy perfect safety either. As always, engineering is all about tradeoffs, no way around it. Car companies have dropped the ball on safety in several cases, but just because somebody died, doesn't mean they did.
Reputational damage is so high from consumer deaths now days, the balance sheet comes out in favor of fixing issues.