Imagine a world where there was but one race per day, or seven races per week. If that doesn't work, simply imagine one seven-race card.
Now imagine, in this world, a perfect field size - let's imagine that number to be ten. Not too big. Not too small. Not too fair. Not too unfair. Ten. Just right.
Now imagine the call for the runners reads: 2.50, 6.00, 8.00, 10.00, 16.00, 20.00, 25.00, 33.00, 50.00, 100.00.
Because I know how very clever and forward-thinking you are, I know you will have already worked out that there is no juice/tax/comm in this perfect world, the market is at 100%.
Your 20/1+ donkeys in this field must win one race on each seven race card, or one race each week if you went with the 'one race per day' option. They must. Over a decent enough period of time, they simply must. It's how numbers work. It's mathematics, it's Mabo, it's the vibe.
If you really had any conviction in what you spout, or actually believed what you peddle to be a truth, you are suggesting that these longer priced runners are occurring more often than they should statistically should. A kind-hearted soul on this very forum suggested to you, many years ago from memory, that if you actually believed what you spout to be true, you would back this subset of runners and untold riches would flow your way. They'd have to, because the numbers, statistics and probabilities don't lie - people do.