Generally when people with power start talking about efficiency we should all be scared because it's really code for "incoming ruthlessness and greed, and privileging corporations over citizens." Being efficient is basically anti-human, it's viewing people and the world as an industrial machine not the glorious squishy alive chaos that is the natural world. Machine desires will not actually prevent billionaires from dying, no matter what ideologies they try to use to hide their basic fear of being mortal humans just like the rest of us not rich people. (This, of course, does not mean they don't get the opportunity to live longer than the rest of us because of the best medical care, lots of rest and relaxation, good food and lots of trees...if they so choose.)