In the world, natural catastrophes and different severe effects increase all the time. Also, different follow up and surveillance missions consume more resources. Kelluu airship consumes 99 % less energy in those missions than a helicopter. And this only takes into account flying itself, not energy and materials needed in building a helicopter vs an airship, which weights only a few kilos.
In addition, airship is a tool by which you can build an air bridge in any desolate crisis area.