Anti-Lock brakes (ABS) were supposed to make drivers safer, too, but they didn't because the sense of security drivers get from ABS makes them drive faster.
Airbags were supposed to make us safer, but now we have children getting their brains smashed to paste by airbags during a fender-bender.
The joys of central planning and government mandates, eh?
Or airbags. Then just wait till it malfunctions and sends a nice fam into an 18 wheeler.