[Confirmation bias] We need a lot of mental energy to evaluate new things, cognitive shortcuts save us time and energy

The results (ed. of the study): only 1 percent of the executives said managers should bother showing employees that their work makes a difference. If anything, many companies try to explain the value our work will have in our own lives, the benefits we will reap if we hit a goal, as opposed to the benefit that others will derive.

But remember our biology we are more inspired and motivated when we know we are helping biologically others. 

If one compares the behaviour of the bird at the top of the pecking list, the despot, with that of one very far down, the second or third from the last, then one finds the latter much more cruel to the few others over whom he lords it than the former in his treatment of all members. As soon as one removes from the group all members above the penultimate, his behaviour becomes milder and may even become very friendly... it is not difficult to find analogies to this in human societies, and therefore one side of such behaviour must be primarily the effects of the social groupings, and not of individual characteristics. 

Nobody realizes that some people expend tremendous energy merely to be normal.