A true leader has to have the ability to convince others to follow them. One of the chief personal attributes which creates a following, is a certain force of personality, or charisma (if you will).
Without that 'It Factor', a person seeking a leadership position needs to employ nefarious means to get to the top, because most people won't naturally support or choose them.
Jeb Bush is an excellent example of the type of person who seeks to be a leader, while having little to no capacity to lead at all.
he got elected governor of Florida a couple of times. jus’ sayin’