The emphasis is always on "getting reward" each time "taking risk" is said where "getting punishment" is never said. That is not what capitalism is supposed to be about. That is just a glib used by people invested into treating risk taking as some kind of virtue (will, virtue if you get rewarded, if you the bad part of risk happen you are lazy looser who deserves no sympathy).

The capitalism is supposed to be about rational decisions in competition and environment of reasonable transparency. Which may mean taking risk or not taking risk depending on how likely the reward part is to happen and how much punishment there would be.