Millions of Apple clients worldwide, can use Apple cloud backup... but for the safety of airliners, these techniques are too expensive
In which case all the infrastructure to move data around is provided to Apple for free by the governments and/or telecommunications companies. All Apple do is provide the storage device.
If Apple had to build all the infrastructure associated with their cloud there would be no cloud.
AS PJ2 points out the expense involved with this idea is way beyond what is affordable.