I'm not sure if there is no place for them. But in the large scheme of things good and evil are moral absolutes that don't have grounding in material reality. It is useful to talk about good and evil colloquially sometimes but if you try to use them with someone who has a different worldview from you, the usefulness starts to break down. For example, how do you reconcile your definition of good and evil with someone who thinks being gay is evil? Or someone who things violent uprisings by Palestinians are evil? (Etc.)

Talking about the communist aim of overthrowing the bourgeois minority to establish a dictstorship of the proletariat, I find compelled to support it not only because it aligns with my moral values, but also more importantly because it would benefit me materially. Same goes for the billions of other working class individuals. Therefore there is an incentive for the working class to work together towards this aim (theoretically at least). Even those who stand to lose their property in the process have benefits to gain in the long term. For example, their children might get to live in a world that is not ravaged by global warming which seems impossible under the current economic system. Arguments like this are more grounded in material reality. On the hand, meanings of good and evil changes a lot more easily.