Is competitiveness a part of human nature or is it our first great mistake? When our needs for survival evolved from the mere need to adapt to our environment and became a desire to take complete control of it, we were suddenly geared toward a will to want to take control of our own species. From this came the suspicion that we no longer liked our neighbours very much and that, in fact, it would be better to control them. Eventually the desire to be better than all those around us became so widespread that struggling to get on top of the tribe became the only logical way to act, as if it were the only natural way to behave. Of course when everyone wants to be on top the result is competition. And when the competitive spirit really hits in then the human condition becomes reduced to a life of a constant struggle between winners and losers, between masters and slaves.
That this is now deeply ingrained in all human society there is almost no doubt, but its ubiquity does not mean that it is good or essential. All of our envious, greedy evil stems from this competitiveness and humanity as a practical, workable concept is impossible whilst the competitive mood is dominant in societies.