Blargh. Great article, but don't get sucked into describing the problem this way - comparing a high school teacher with a international-standard sportsperson is NOT comparing like with like.
Heard of Tony Robbins? - He is a 'teacher' who gets much more than 10 mill pa. How about Zig Ziglar? etc etc etc. Similiarly there are plenty of (professional) sports people who only scrape by - check out your local gym instructors, school phys ed teachers, and the golf pro at the local golf course.
While the exact figures vary of course, in general in EVERY profession about 5% of the people make 95% of the money. You just have to make sure the way you are defining the profession doesn't exclude the comparision group.
So, seperate the issue into:
(a) Is the way society rewards different professions 'right'? If not, is that the result of government intervention, or is it an inefficiency in the market economy that might justify government intervention?
(

Is the degree of income inequality within a profession 'right'? If not, is that the result of government intervention, or is it an inefficiency in the market economy that might justify government intervention?
(c) How can I move up from being one of the lowly paid slobs, and be a highly paid superstar?
IMHO, (a) is wrong, as a result of high intervention government (

is usually right, although I sometimes wonder about the barriers preventing people moving up the scare within their profession, and whether in some cases it needs work... (c) I'm working on it - I get triple what I made 5 years ago...