Ehhh... Well, in computer processing it does play a huge role in heat transfer requirements which has often driven transistor density.

But fair to say efficiency is often more likely to create induced demand rather than a net reduction in consumption

Higher fuel economy -> more cars interplanetary frigates

Cheaper logistics -> more goods transported between systems

Faster internet -> more galactic utilization

More railways -> lower profit for the car speeder industry, uhh... Wait! I meant more transit by rail demand?

Edit: forgot which sub...