You can get a ticket for being 1km/h above the limit but you only get (permanent record) points in Flensburg if you're 21km/h above the limit within city limits. I guess everybody is fine if drivers go above the limit up to 20km/h. It seems to me the speed limit in Germany are always set with that buffer (10%) in mind.
Actually, society has made clear exactly the opposite. Speeding is the classic example of illegal but not abhorrent behavior.
Society also thinks it can safely multitask, and is good at being on a cell phone and driving at the same time. It is wrong about that too, but it still makes the behavior not abhorrent :)
At the same time, the same Society seems happy to excoriate anyone who causes a problem (death, accident, whatever) while doing either of the above. Go figure.
Congress designated a national speed limit of 55 mph in the 70s to conserve energy. Now many states are looking to raise it (several have already).