Anyone could be considered a master of their craft if we consider the amount, quality and depth of knowledge and expertise of a person in a relative field. However, masters will rarely become masters if they are not willing to share their knowledge, guide, and most importantly, develop somebody else — somebody who is, let’s say, starting his or her career in the field.
Masters should teach the inexperienced. They have the power and experience to take someone new in a path and guide them to be better at it. Masters have powerful knowledge and should not hold all onto them. They have the influence and can inspire people to be better at their craft.
Wouldn’t you have wanted a master to guide and develop you at the start of your career? So be it. Be the masters you wish you had when you started your path. Take an apprentice under your wing and develop him or her to reach the next level.