“Becoming a good public speaker is hard work. There are a lot of elements that you have to keep in mind, a lot of skills to be learned and many ... many hours in front of an audience to become a good speaker.
“What will a horse eat if it befriends the grass?” - Ancient Asian Wisdom
Yes, the pay gap happens for sure when companies or conference organisers/planners are looking to hire speakers (for a talk, training, coaching etc) for their event.
The story goes, there was once a therapist in Hawaii who is said to have cured an entire ward of psychiatric patients considered to be criminally insane, all without seeing a single one of them for therapy.
He was a man that was never destined to be a leader, and King George VI, the current Queen’s father, struggled with speaking from being a young boy. This was made worse by the pressure he experienced and the fear that he felt regarding speaking in public.