Where did such a research observation come from, since we remember from professional experience that aggressive and insensitive people quite often reach the top? Well, it seems that this happened in spite of the incivility, not because of it. Reaching the top is one thing, but staying there is another. Without support, it will not be easy, and the fall will happen rather quickly.
A lack of sensitivity or respect often sabotages support in critical situations. Employees may not share important information, refrain from certain activities or refuse to engage certain resources. Sooner or later, mistreated people – directly or indirectly, actively or passively – sabotage the success of those above them.
Empathy, unlike intelligence, is not a static trait. You can learn it. Whoever adds this skill to their talents will achieve and maintain success.