Can't eat air!
One of the great reasons why wireless networking and phone technology is popular in Africa is that the copper thieves can't steal the wires. One area I visited often, many years back, had a 25 mile long telephone cable to a phone that never worked. By the time the installation crew finished the installation the first half of the line would be gone and they'd wait for the next year's budget and start all over again...
he mentioned them eating fiber runs. You can't realistically replace a fiber network backbone with 802.11g
Failure is more frequently from want of energy than want of capital.