Generally speaking, people don't respond well to being told when or how to do their work. Good leaders don't rely on power to achieve great things with their teams. Positional power is not their tool of choice and the less it's used the more impact it has. It takes courage, strength and skill to know when and how to say No without depending on positional power.
Leaders with this strength:
Inspire and motivate others
Are respected by their peers
Achieve more, faster
Are like magnets: people want to work with them
Can these skills be learned? Yes; if the leader is willing and commited and consistent in their use. Without commitment they're not believable and quickly exposed when out of their comfort zone.
Success is not dependent on positional power.