It's deeply damaging as it turns reality on its head. Anthropological evidence staunchly supports the view that humans are incredibly cooperative and this cooperation has been necessary for survival. On top of that, shaming and repressing bullies who seek to dominate and exploit other humans is a crucial aspect of basically all cultures across history. The whole alpha male ideology is a perversion of humanity, an attempt to legitimize the idea that some humans are better than others and thus deserve to subjugate (which is really a reflection of how the bourgeoisie justifies its own existence and rule over the proletariat).