Competitions. There are 2 types of competitions.
One promotes self-development, while the other promotes self-destruction.
Real competitions make you want to challenge yourself positively, improve your skills and grow better. It doesn't matter if you win or lose, you'll benefit from it either way. They promote self-development, making you stronger and wiser after you push yourself positively towards self-betterment.
Self-destructive competitions, on the other hand, are mostly 'made-up' competitions between peers (or neighbors). People who indulge themselves in this type of meaningless, never-ending, ego-feeding competitions just want to compete with each other desperately in order to satisfy their thirst for instant, temporary and cheap recognition, to be seen or considered as 'elites' among their peers, regardless of whatever 'methods' they choose to use. They succumb to peer-pressure.