Yes, the fact is that profit is always proportional to risk. They are associated with risk, if the risk is large, the profit they bring us the greater. And vice versa, that is the principle in business from the past.
I agree with your point but I will also try to add that if there is risk then it also mean that the profit and loses are the same in that particular investment so if a person do not have much money to lose or he cannot afford to lose that money then he have to choose for a safer investment and when he will earn some extra money then have to go for risk.