This is the main problem with humans. They are often too easily distracted by the many things that they may find themselves capable of doing.
That line was quite deep and the nib for these thoughts of yours. I think the term of "efficiency" was better used for machines which are designed for specific tasks. The human nature is multi-dimensional and multi-tasking, our lives should tend much to being "EFFECTIVE" which goes beyond measuring just the output. The quality of our input parameters must also be put into consideration, thereby, we can create the BALANCE.