One thing that doesn't get taken into account though is the indirect benefits these sports provide to the overall picture.
Like, how many fans that are big supporters of football\mens basketball and have their revenue accounted for in that bucket are also big fans of sports like wbb\wrestling\volleyball being competitive? How much do those sports keep those types in the fold when football\mbb are having down periods. The dollars show up in the football or mbb accounting, but being successful/competitive in other areas is part of the 'total package' to many.