I don't care much about the fixed ones (unless SPECS) as I am protected from those via the databases. The mobile ones are the dangerous ones, so hopefully they will disappear as well.
In my hometown there are about 50 Gatso speedcams... none of which work. They stopped repairing/replacing them a few years back as the income they generated didn't weigh up against the constant repairs.
It will take a long, long time before a government could even tackle the civil service as the rot is really deep in there. You can't make a lazy person suddenly an active person.