It's safer for those in the larger vehicle but more people die in large/small vehicle accidents than the accidents where both vehicles are the same size.
If your vehicle causes the death of someone, that death should be considered pre-meditated.
“You should increase the chances of death of your family because it might decrease someone else’s chance of death” is not a compelling argument that will work naturally on most people.
If your vehicle causes the death of someone, that death should be considered pre-meditated.