The fear of on-line "rock star" law professors.

Kevin O'Keefe writes:

I was having dinner this spring with, among other folks, a couple law school professors who taught at a good state school in the Midwest. 

Wisconsin?!

I asked them if they had fears and trepidations like lawyers and business people do as to what they future may hold. One of the law prof’s said absolutely, online education....

What made him most afraid was his belief that we were going to see rockstar professors being paid handsomely for teaching huge online classes. If we can have rock star athletes like LeBron James making millions, he said why not professors making millions by attracting large enrollment.

LeBron James proves his worth by applying his skills against others, contributing to wins achieved through specific rules of a game, and drawing spectators who pay for the entertainment of the particular game they paid to see.

How can a lawprof demonstrate his value?