The idea about "all profit is due to risk" is a little one-dimensional. People/groups of people can profit for many reasons. For example, owner of a company can

The idea about "all profit is due to risk" is a little one-dimensional. People/groups of people can profit for many reasons. For example, owner of a company can profit by selling or even bankrupting his company. There is often little to no risk connected to that. On the other hand, if somebody else takes on some substantial risk and invests in a company, he may not profit at all - if the owner makes it bankrupt.