From Wikipedia:
"A socialist economic system would consist of an organization of production to directly satisfy economic demands and human needs, so that goods and services would be produced
directly for use instead of for private profit driven by the
accumulation of capital. Accounting would be based on
physical quantities, a common physical magnitude, or a direct measure of
labour-time in place of financial calculation.
[5][6] Distribution of output would be based on the principle of
individual contribution."
What you say is wrong about the NFL is that they make too much for playing a game and that what they do has no social value and therefore does not meet your standard of
individual contribution. Also what they choose to do with their time is wrong.
Please re-read what you wrote with an open mind to what socialism stands for.