I can say that not only would I never get anywhere with math at that level, but some of the related mathematical pages on Wikipedia surpass my ability to even tell if they are real or the work of cranks.
For any random person, there are things they can't do or learn because of the way they're made, any more than a cow can do calculus.
What's deceptive is that people constantly tell you that you must believe in yourself. But the reason isn't that believing in yourself is sufficient for success - the reason is believing in yourself is necessary to succeed so everyone who is successful attributes their success to that.
It may take them 20 years to learn math from the ground up, but they can do it. Saying someone can't do something is bullshit. That's sheep mentality.
I've met Marines that were assholes so I'm guessing that 'join the Marine Corps' isn't as great advice as it first appears. Recently a Marine drill instructor was implicated in the abuse of Muslim recruits. That isn't a good leadership skill for the corporate environment. Your notion is too simplistic. It doesn't apply to everyone. It applies to some people but not all.
People lie on a spectrum in terms of abilities and personality. Not everyone can be molded to have the requisite knowledge/personality type to command high pay. It's simply not possible. Just take extreme examples and one can easily see this.
A Drill Instructor being a dickhead is also a choice. It doesn't make him any less able to be a leader. My point was, joining the Marine Corps turns weak individuals into respectable men that can command dignity and respect into people. What they choose to do with that transformation is up to them.
Peoples' personalities are also not always so malleable. My wife is a psychiatrist and she deals regularly with people who simply do not have the choice to change. Forces inside their brain are beyond their conscious control.
The Marine Corps sometimes turns weak individuals into respectable men. And sometimes it pumps out assholes. It doesn't work for everyone. This is obvious.
There's a substantial body of research suggesting otherwise.
The whole point of the 1% is the remaining 99%. The axiom of this game is there are filters enough to filter out the 99%.
Similarly with sports, there is a huge range of player incomes and assuming the sport becomes more interesting to watch and thus profitable their would be room for more highly compensated players.
You also mentioned movies, but a lack of competent actors is far from the biggest reason there aren't more movies being produced.
In terms of movies, studios look a lot like a VC firm with a term sheet from hell. However, plenty of studios died over time and would be making moves today if their past movies where more profitable. Sure, you needs a direct / script / special effects etc, but low budget movies with simple scripts and great actors also work without X00 million dollar budgets. So, their is clearly some wiggle room in terms of number of movies produced per year.
Plenty of people are in a move, it takes something else to have the kind of run of a Robert De Niro or Anthony Hopkins. And generally people that have those kind of long runs are significantly more talented that many others.
They also often have family in the business, who presumably pass on more than just a foot in the door.
Extend that across all actors and you presumably get more profit without higher costs anywhere which should result in more movies. But, even without more movies higher profits mean actors are simply worth more and collectively would get paid more pushing up compensation for the full range.
So, again it need not be 1:1, but a significant increase in overall sales including for home entertainment can happen because people have options outside of moves like video games.
PS: Major 6 put out 128 movies in 2006, but only 78 in 2013.
So yes there is diminishing returns and actor quality would eventually stop being a meaningful constraint. But, again all I am saying is it's currently a meaningful constraint; not that it's always going to be one.
And the consequence for failure are huge: 90 players start the pre-season, and after training & a few pre-season games, teams have to drop that to 53. 10 extra can be part of a training squad, which represents a 75% pay cut compared to the league minimum for the 53.
Some players make 50x+ what other players are making. Having linemen make 10 million per year does not involve adding linemen it involves linemen that are worth being paid 10 million / year.
At the same time football has added new teams over time and increased both the number of players and minimum salary significantly from inception.