That is a profoundly naive study...
After reading this my stress levels have gone up, as I now feel like venting my despairing anger on these morons who wrote this useless study. Ok, deep breath, here goes...
@"trust, straightforwardness, altruism, compliance, modesty and tender mindedness."
Oh what an idealistic view of the world. Problem is whilst most people are like this, some are most definitely not and they (the Narcissists) are the cause of a huge amount of stress for everyone else, as they try to fuck over everyone else for their own gain.
Day to day most people are not be exposed to the full wrath of the Narcissists, but over a lifetime its impossible to avoid them from time to time causing us all great hardship and suffering and therefore stress. But that takes time to learn to see the true root cause of so much stress in our lives.
The first most obvious kind of Narcissists that we learn to see are the aggressive Narcissists, but they are easy to spot. But some Narcissists are very good at hiding their true underhanded intentions (these are the Passive–aggressive Narcissists) and they are much harder to see due to their very two faced underhanded ways they work against people. Even worse their two faced nature gives them a competitive advantage in political fights for power over others, so they sadly naturally end up dominating higher levels of political power regardless of which political party we look at. The Passive–aggressive Narcissists are also very good at gaining power in corporations.
The Narcissists is why progress is so difficult in politics and in corporations, because these people dominate and then control and therefore stop and endlessly block everyone else succeeding, but most people are frankly ignorant of the depth of cunning and duplicity of the Narcissists. Its why in society they are so effective because if everyone realised their cunning and duplicity they would be stopped. But then they don't want people to wake up to their actions (so they often use straw man arguments to put down anyone who tries to speak out against them). Duplicity is as easy as breathing for the Narcissists in society because they spend their lives learning effective means of lying and deceiving people.
Therefore ignorant profoundly naive studies like this actually hold us back more than help us as society to finally get at the real problems in society.
I'll leave the last word to the late great Bill Hicks as he talks about some of these Narcissistic scum bags in society...