We are in a growth stage, so rightly or wrongly capital appreciation > dividends. It is currently achievable for a high number of traders with fairly little skill.
As the market matures it will be far more difficult to consistently make high returns from capital appreciation and only a small % of traders will manage this. Dividends and player prices will then correlate far more closely.
It will also be the Greenwood's of the Index who are prone to suffering big % losses. The market has priced in future expected dividend returns based on current expectations. A number of these unproven players will tale off into relative obscurity and suffer huge drops. Other's will make it. High risk = high reward or high loss. Good fun though!
If we do ever see a significant market crash i expect it will be the Greenwoods that drop the fastest.