You’ve driven a trip on the highway at 55 mph for comparison? Or are you just using bogus math and comparing apples to oranges, with a 70 mph trip on the highway versus a 55 mph trip on a slower road?
I understand you making the assumption considering where our society is, but when you assume you make an ass of u and me.
Yes, I have driven my vehicle at 55 and 70 on the same highway, same weather, same time of day with the same level of traffic, because I was curious. It is my nature to test my theories.