Is this the Jeremy Clarkson defence perhaps ?
"I have a powerful, very expensive car and I want to drive everywhere as fast as I jolly well like "
Speed limits exist on all our roads in Britain, not just the ones that might or might not have had fatal accidents on them. Speed cameras only catch people who exceed those speed limits and therefore break the law. If they do it enough times, than they stand to lose their licences, thus depriving all of us of yet another dangerous driver on our roads, albeit temporarily.
If these people help to boost the finances of the local Police Force, in a time of savage cutbacks in expenditure......well, all the better surely ?
Not really quite sure what point you are trying but failing to make here tonyav ?