Ironic of him of all people to question the practical value of something, when he is the kind of villain that would rather move an entire building's location with a device that he has to invent first (using the money from his ex-wife) instead of moving his sofa to get a better view at the sky.

Can you imagine how frustration it would be to have nighomnipotent powers and not being able to use it for yourself is? also spend long periods of time without any form of enterteiment, no wonders genies are chaotic evil