Everybody occaisionally exceeds the limit. That's a fact. But, we are not in any position to determine what the speed limit should and should not be. The sign says 80kph....and that's where the speed limit stands. Think it's too low and you decide to go over? That's speeding. Citizens do not have the right to change the law based on his/her personal view, but each citizen has the option to not obey the law.
It sounds like that's exactly what you did.....and you got caught. But don't blame the speed limit for your speeding tickets. It's all you. If you are in a position to get caught for doing something illegal, more often than not, it's not the law that's wrong, it's you.