Yeah... That's the idea...
Like you say! The reality is completely different!
All that money that the early guys giving the signal makes will be coming straight out of somebody else's pockets...
It's literally a mass market ponzie-pyramid event... Those who get in first will make the lion's share of the money, those who follow will capitalize in a decreasingly significant fashion... Eventually the table's turn and those who will be be buying will be buying in too late which means that when the sell-off occurs and they're left holding bags... Their extra money will be in those early-bird whales' wallets...

I picture it as one of those shuffling of cards rapid number crunching things that looks a little bit like this...