You must not get out much. Thats a fairly common speed in the fast lane anywhere in the GTA. Residentially, yes agreed, they already throw the book at you.
But the highway? 100km/h is a joke and a relic from the 1950s. Back when heavy, unstable cars had skinny bias ply white walls, no abs, solid axles, horse buggy suspensions, no airbags and no fuckin seat belts.
It should be raised to at least 130!!!
Hell whenever I go to Germany, the recommended speed limit is 130, everyone is doing and alert and crisp 150-160 and staying focused. The cars are well maintained and the drivers are all yield the left lane immediately, so there is none of this swerving through traffic BS to get around unlicensed 3rd world idiots 
No! cell phone users should get slapped with a $10K fine, they are dangerous and apparently too broke ass to go Bluetooth.