It is sad she had to die to learn an obvious lesson. I doubt the roads will be much safer due to the number of idiots who behave in the same manner. It's a sad commentary on our society that any of them are permitted the privilege to drive.
Ironically, as cars become safer, I think any advantage is negated because people just drive faster and riskier. I have an older pickup I use for general hauling and pickup stuff. The only plastic on the entire truck is in the tail lights, and turn signals, and the knobs on the dash, and drum brakes all around. That's it. Knowing that - it's keep 'er around 50 and between the ditches. Today, we have padded dash, steering wheel, air-bags, power-brakes, power-steering, ABS, anti-lock brakes, sound-deadening materials and virtually silent engines if desired. Coupled with mandatory, full-coverage insurance on a bank-owned vehicle, I'm convinced people just don't care, since they have no concept of ownership, either financial or of their body.
Locally, some poor guy was killed in an accident caused by an idiot that stopped in her lane because she had a flat.
I'm just being fussy here, but most vehicles are between 3,000 lbs and 5,500 lbs. Think Chevy Aveo at the low end, Escalade at the upper end. The numbers you cite are 6,000 to 10,000 lbs. At the upper end, we're talking delivery truck. Which, of course, no one would want to get hit by. Again, just being fussy.