Many countries do enforce the speed limits like that. Try doing 110kph in a 100kph zone in Australia/NZ/CH and you'll get ~500$ fine pretty quickly and lose your licence on the 3rd try.
InvertedRhodium
110 in a 100 zone in NZ would see you with a $30 fine and you would need to accrue 10 such fines in a 12 month period to lose your license.
As a result, speeding is very common here. Australia is a totally different story.