It's a bit of a myth that Jordan was criminally underpaid by the Bulls. He actually made about the same as any other All-Star caliber "best player on his team"-type player in the NBA at the time.
He was the best of the best for sure but it's not like he was making less money than Barkley or whoever.
For example here's 1993:
David Robinson $5,720,000
Michael Jordan $4,000,000
Scottie Pippen $3,425,000
Patrick Ewing $3,300,000
Hakeem Olajuwon $3,170,000
Shaquille O'Neal $3,000,000 (rookie year)
Karl Malone $2,854,000
Magic Johnson $2,500,000
Charles Barkley $2,420,000
Larry Bird $2,300,000
Isiah Thomas $2,272,000
Clyde Drexler $1,378,000
I did that by hand from basketball-reference.com, might have forgotten someone but I think I hit on most of the big names.