This might be one of the dumbest things you've ever posted.
There is no parity in baseball. There are brief exceptions which are quickly overwhelmed by the norm. If you want 10 of the 12 play-off teams to be the same every year, then by all means, lets have a system like baseball. It'll be very exciting for the largest markets with the richest owners every year to wait to see which 1 or 2 teams from the bottom 2/3 of the league they be playing that year.
If you haven't noticed, money buys wins (if it didn't, teams wouldn't pay more for the better players). Wins build marketable popularity. Popularity generates money. You should be noticing a circular pattern about now. Here, just in case you didn't:
Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity -> Money -> Wins -> Popularity ->