Answer:
An efficient society is better able to serve its citizens and function competitively. Goods produced efficiently are sold at a lower price. Advances as a result of efficiency have facilitated higher standards of living such as supplying homes with electricity, running water, and giving people the ability to travel.
If you're thinking about whether to be effective vs. efficient, it's important to look at what efficiency and effectiveness mean as well as the result of being efficient versus the result of being effective. According to the dictionary, efficiency is all about doing specific tasks in an optimised way.