Speeding isn't the cause, reckless driving is. Just because someone was speeding at the time of the accident doesn't mean it was the cause. Reckless out of control driving is the cause, speeding is the symptom.
Bingo. "Reckless driving" is a much better term, but it's more contextual than a lot of authoritarians and administration-types like. 25MPH can be reckless in specific scenarios. 120MPH can also be safe in specific scenarios. You need context to decide.