A good leader understands all of these principles (among many other things), can predict what opponents will do, and make the right calls to counter them
A good leader is completely useless unless the people in the group all perform well. If the leader calls for movement, you should move. If you stay where you are, you may get one more kill, but more often than not the leader knows or sees something you do not, or is strategizing for the next movement and if you do not follow commands then the group is less powerful. You may have gotten that one kill, but you’re going to miss out on the next 20 kills because of it, or put others in your group at risk because they have to come resurrect you rather than keep on killing.
Do what your leader tells you or get out of the group.