You've probably internalized the talking point that "speeding doesn't cause accidents". While not completely true, the correlation isn't high.

However, speeding does have a significant impact on the severity of the accidents, making it an important issue. A little bit of speeding can be the difference between a fatal and non-fatal accident. Speeding is estimated to cause 30,000 deaths a year in the US.

https://safety.fhwa.dot.gov/speedmgt/ref_mats/fhwasa1304/Res...

this should allow for fewer net resources to be used to combat speeding thanks to automation. police can be used elsewhere.

There are more people than just the "motoring public".