75mph on rural roads? I've also been driving for 30 years, and have done a lot of that on rural roads. You are out of your mind if you don't feel the difference between 50 and 75. On the interstate, with zero traffic? Maybe. On a winding rural road? Bullshit.

If you can't tell whether or not you're going 50% over the speed limit at what you call "travel speed", then you should not be operating a motor vehicle. Seriously, that is not a small difference.

If you don't notice a difference between 80 km/h (50 mph) and 120 km/h (75 mph), you shouldn't be driving.

I think this case alone already nullifies your argument. Rules like this exist for exactly this reason, not for people to say "that is fine I am a good driver so I can go faster than the rules". I have been driving for quite a while too (10 years or so) and the fact that you can't see a difference between 80km/h and 120km/h just means you have gotten too comfortable. 90? Quite possibly, 100 ok fine but at 120 you should already be feeling off unless you are on a highway. On top of this, attention and reflexes only wane with age, so unless situations like this are harshly punished people will keep causing accidents just like this.

if you can't tell the difference between 75 in a 50 it's time to turn in your license.

seriously, do it before you murder or maim someone.

He was clocked going 75 in a 50. That's nothing for rural roads. In modern cars, you won't even feel the difference at travel speed.

Bullshit. If that was the case, the speed limit would just be 75 there.

For reference, I've been driving for 30 years and haven't had a ticket in 20 years, and even i will look down in amazement that I am going as fast as I am.

Oh, well since you're reckless and lucky I guess it's okay.

I had a family member that felt this way about driving. He died wrapped around a pole and took his passenger with him.

Just to clarify, we're talking kph, not mph, right?