Probably, it's the older guys who kill the contests, because they've learned all of the thus tricks. A big difference between answering a question well beyond one's faculty, and, already knowing the trick. On the other hand, probably, it's the younger guys, with the time and energy, drive, learning curve, and, connections, who work the actual sports betting.
For sure, most of the professional school guys work for relative peanuts with little or no say in anything. Ever wonder that the Oppenheimer's of the world never came to rule it? Just a bunch of schoolboy bozos.
Caught a bit of the Jane Goodall interview, last evening. She said that the problem with the world is still our fascination with money. 100% agree. And, that that will always be the case.
P.S. If I'm wrong, then it would have been so easy for you to post up a month's results in the real world, twenty years ago, than to spend those years here and there, to try to prove things out the other way.