Do you know what the guy's record looks like? Maybe he had been cited for this before or just got a warning. Maybe he's had several driving offenses. Or maybe his attitude when the officer stopped help earn him the fine.You all never heard of "second chance"?
You people are tough, no love here.
Here in the US, officers and road workers have been injured or killed frequently along side express ways. It's possible the officer saved this guy from that fate. Or the chance of getting another ticket might persuade this guy from doing this in the future, thus also possibly saving his life. Pretty sure that would be worth 100 pounds.