Every single individual wanted to succeed. It may take many forms of success and some sort of satisfaction with life, but overall, they share the same idea, which is success. Many of you wanted to achieve that success in any way possible, in any degree there is, and at every opportunity you get.
Putting it up front that everyone wanted to grasp that success, a couple of ways will circulate in your head for achieving it. Some do it in a righteous way, the way wherein man follows what is subjectively just and moral. Yet, some also do it by any means possible.
Moreover, at a certain point in achieving those successes we are aiming for, there will always be a comparison to others that will be born in our cognition, which corrupts our minds into doing immoral acts just to catch up or be on par with others. It may come out in reality as ill-contagious words or unsolicited, unpleasant actions.
Some call it survival of the fittest; others see it as "the only option," but holistically speaking, it is jealousy. We are never born with the same cards nor given the same privileges, but we are gifted with the so-called "choice" of how to act. Man would bark at others trunks just to secure the feeling of fulfillment that he is not left out. Man would create false stories or even drag down his fellow being to cut out the feeling of inferiority amongst its peers.
Two of the many factors that hold up a man's progression are his perspective and personal issues. As important as it is to succeed, man should have no right to trample down or mind others' businesses if he can't correct his own. The construction of one’s empire should be given more importance than sending its untrained soldiers into crippling bloodshed. The same goes for men; a man should firmly build himself before he can criticize and partake in others’ lives.
Keep in mind that one’s growth is more important than others success. You have your empire to build, your story to write, and a life to live. Therefore, invest more in your success than being a side character in others' stories.