Yes, they can be, but only when such form of capitalism is subjugated to a meritocracy, which in turn can only come from a relativity theory of freedom. Neither we have today and the source of much of misinterpretation of what capitalism can do. Our current version of capitalism merely supports the pursuit of a Neanderthal-style vile-maxim, with a less transparent version of pillage-and-plunder — progress of a kind.
Nothing subjugated to our current implementation of capitalism is equipped to build the renewable strengthening of the evolution of humanity, except when you as a company or person ignore capitalism altogether and dance to your own tune of human excellence.