Affluence also factors in significantly both on a community level and personal level.
Driving 80mph through a small town with significant environmental debris on the roads where everyone is driving trucks from the 60s? That should be a felony.
Driving 80mph on a clean, straight highway where everyone is driving a relatively modern car? There should be _no problem_.
Separately, IMO, vehicle should factor in at the judgement level of law enforcement. My car can stop from 60mph in <100ft, will pull >1g on skidpad, has a full bevvy of features to alert me of surrounding conditions and will intervene in certain dangerous scenarios. The idea that such a vehicle should be equally treated as a 1992 unmaintained civic is ridiculous. Yes, the laws should be consistent in a given area, but the application of those laws should be just not blindly applied. There's clearly a boundary to be crossed, but my car going 10mph over is SIGNIFICANTLY less dangerous to the public than that hoopty going the speed limit.