Not really. I mean not in every sphere. In the cryptocurrency it is a matter of course. In any case, if everything is correctly calculated, then problems will not arise and the risks are minimized.
As a rule of thumb you are good to go with big profits being closely tied to high risks. The market - if it functions properly - will take care of that property being present at almost any point in time.
If it were so simple, then the market would be oversaturated. I agree that the more risks, the more profit you got. But if you take the ICO market specifically, then there are risks that can not be foreseen. This repels some investors.
The market would be saturated? It would not be simply because of the rule I stated. The higher the risk, the less people are willing to take it.