1 million dollar coaches

Good Morning. I am in sales and have been for years. I work hard and earn a good living but have trouble understanding how it is possible for your coaches to earn 1 million dollars a year. I totally get how you do it, but how much work do these coaches have to do and how many clients do they need to have, to earn 1 million? And finally how soon after becoming coaches are they earning such high salaries.
I have been using my learning from SCS to counsel friends from time to time for free of course, but perhaps I should be looking at this as a opportunity to coach instead working so hard for so much less. Please advise. 🙂