Keep in mind that the owners get over a billion off the top of revenues to cover expenses, PLUS a large amount for stadium expenses. Those percentages are AFTER the owner's guarantees are taken out. Basically, virtually all of the owner's fixed costs are covered, and then they get about half of the remaining revenues. So each team gets hundreds of millions to cover incidentals, coaching salaries, and the salaries owners pay themselves and their families - the biggest expense is already taken out with player salaries and salary expenses. Most of this revenue is guaranteed to them, whether they run their teams well or not.
I'm just not sure I understand why some fans seem to root for the owners to make more than they would be likely to make investing in a risky business. I'd rather the players get more - and yes, have much of the money go to retired players.