It just means that even people with leadership talents need to cultivate and train themselves or else they will become proud and complacent. By the time they come to think they really must be charismatic leaders, their charisma has already faded because they haven't been able to communicate normally with others.
但這並不否定有些人這方面的稟賦的確比別人高，只是這樣的人同樣也需要善加涵養修持，否則這份領袖稟賦很可能轉化成倨傲偏執、自負自戀，等到他覺得自己真是一位有魅力的領袖時，他的魅力特質其實已經喪失，因為他沒有辦法和別人作正常溝通。