Good deals with high returns will never come to retail investors.

The main purpose of any investment product is to raise fund to meet the investment objective.

So whenever there are good deals with good returns; private bankers, investment managers, deal-makers, private-equities and specialists everywhere will be fighting among themselves and rushing to their rich clients to offer them and they will have no problem in raising the required fund.

These investment managers are well aware of the consequences of selling to the rich clients misrepresented bad deals!

Only for deals that may turn potentially bad or negative that these investment managers will have no other choices but to spend time and efforts to organize road-shows to sell them to retail investors e.g land banking, oilpods, etc. 

This is common sense in the investment domain. The rich clients are given first right of refusal for any investment opportunities. Why retail investors don't seem to understand it? 

Good deals with high returns will never come to retail investors.

Avoid any investment products that promise high returns; 
but are sold to retail investors.

Avoid them or else you may get roasted!