True, but on a per game basis nobody even is approaching NFL players salaries. NFL is also, by far, the highest revenue generating sports league in the world, nearly double the 2nd place MLB. NFL approaching $21 Billion per year in revenue, MLB is at $12.1 Billion.
Also, out of the top 100 highest rated TV shows every year, around 75 of them are NFL games. A random week 12 NFL game draws more eyes than 99.5% of anything on TV. Super Bowl is, by far, the most watched TV show in the US every year and one of the most watched events in the world each year.
To put in comparison...the Apollo 11 Moon Landing was considered one of the most watched events of all time with 125-150 million viewers. This past years Super Bowl averaged 127.7 Million Viewers.