If the fire brigade were a privately owned organisation (as an example, IMO I don't think it should be) at least they would increase their efficiency, response times and technology. I don't think the fire service has "improved" much over the last decade or two as there is no "need to". However if they were a profit motivated service (especially if there were more than one organisation competing in the same market) then you would see response times like no other and technology we possibly can't even think of today.
How do you define "efficiency" in terms of the fire brigade?
The fire brigade is one of those things that *cannot* be efficient in terms of having people productively employed all the time. They must always have some spare capacity in case of an emergency. The better their capability to respond to an emergency, the less "efficient" they are in terms of productive outputs.
From my point of view, there should *always* be one fire engine and crew sitting idle and instantly available in my town, in case *my* house catches fire. No matter how many other fires are being fought simultaneously.
If the fire service was profit-motivated, then the capability level would be kept to a minimum, because capability costs money. Inevitably, response times would go up.
Competing fire brigades is as ludicrous as the competing Health Boards set up under Rogernomics. Health is currently struggling because it has to deal with inefficiencies caused by that.