1 - Most people aren't smart and/or motivated enough to use your fuel bonus system.
Also, there is some subjectivity with getting tickets. What if driver beats ticket or gets it reduced to non-moving violation?
In the end, they would blame management for not attaining bonuses.
2 - Want safer roads? I'd like to see the statistics on these devices. I speculate you could get safer roads with technology: automatic transmissions, speed limiter, cameras (with in-cab monitor for lane changing and backing), exterior distance sensors, electronic logs, daytime running lights, etc. These electronics are getting cheaper by the day. Many will soon be standard equipment like anti lock brakes.
Airplanes ####pits have an instrument called an artificial horizon. In its simplest form, it shows if your wings are level, if the airplane is pointed up or down.
Imagine if your truck had a screen with a graphic of your truck and distances to white/yellow lines, distances to vehicles ahead and behind. A readout could show how quickly you are gaining on the car ahead of you and how quickly someone is gaining on you. Truck radar.
Imagine if your truck had a backup camera. Imagine if your truck had a right side camera that came on when you turned on the right turn signal. Same for left side.