In addition to "efficiency" and "working smarter not harder" there is compassion for yourself and all beings in the universe:

 "in the past, present and future".

Why do I say in the past, present and future?

Because Time travel has always existed in this galaxy and is the main way the Galaxy controls what happens here on earth by the way. But, mostly it is used to prevent Earth from nuking itself out of existence like our ancestors did 65 million years ago out past Mars on a planet Called Maldek which is now the Asteroid Belt out between Mars and Jupiter.

So, compassion (since Time Travel Affects our lives here on earth) compassion for the past, present and future of all life in the entire universe becomes important too.

By God's Grace

Since our ancestors nuked out Maldek (the asteroid belt) we are not allowed to nuke earth and have it stay nuked anymore. However, nukes have gone of and then were retroactively prevented through time travel at least 50 times or more since World war II at this point.

This is one reason why so many people remember dystopian times with civilization gone because it happened in their memories before they used time travel to bring it back before and to prevent the births of those who caused those nukes to destroy the planet.

By God's Grace