The desire or struggle to win is not at all a bad idea, the ability to struggle is not in any way a bad idea either but it is important that we learn to do things in the right way and that as well includes competition.
It is not possible for any successful man not to compete as there will always be people who will want to compete with you in whatever you do, it is therefore important that you learn to compete in an healthy way.
One thing we must however know and learn is that, in our quest for power and authority, we should endeavor not to go for the throat of our competitors, the fact that we are competing for a particular thing does not mean that we should harm or hurt ourselves for the quest of power.
One good thing that a competition that is healthy can do is to make the participant become better people and not hurt them in anyway.
In the other way round, when a competition is not healthy, it will hurt the individual, it will lower the competitors morale and it will as well hurt the team and such competition are totally just referred to as being unhealthy.
People who compete in an healthy way grow together, succeed together and they become better and bigger individuals as the day go by.