How do you know that the person deliberately used it to place others in danger? Running a red light might be intentional or accidental.

Well, that's the sort of judgement that Judges have to make every day. I'd also observe that "motive" makes little difference to the family of a person who gets killed by a red-light runner. So ask yourself whether it is better to impose a severe punishment after the worst happens, or to create an environment that disincentivizes selfish behavior and simple loss of attention that can still cause manslaughter. The answer is contained in the fact that we have traffic signals in the first place. ;-)