Earlier quoted context omitted.
Basic game theory at work right there. You only need a few bad apples to cause the entire system to devolve.
Perhaps the fundamental issue isn't the apples; it's the barrel. If everything is a competition, then of course people will leverage personal advantage for personal gain. But why is everything a competition?
For all of human existence there has been competition for limited resources. Until all resource scarcity is eliminated competition will remain in the natural world.