The direction of evolution
So when evolution changes the world, the question arises in which direction? More specifically, does the world becomes a better or a worse place throughout time? I propose that evolution has no particular direction because there is no value system in evolution, only a survivor ship bias.
On the other hand, maybe it could be stated that evolution is directed towards order and away from chaos. Because systems which are in status quo (as opposed to evolution), are naturally in decay over time and return to chaos, which follows from the second law of thermodynamics. So evolution can defy chaos and consequently create order. However, order needs energy as implied by the same thermodynamics law so probably we have to add a canalization of energy as an additional feature to give evolution a direction. For the evolution of humanity this seems to be correct, as human societies have been able to bring and redirect energy increasingly into their service throughout history, creating all kinds of orderly structures. Examples of these structures can be found in the material (cities, roads etc) as well as in the immaterial realms (democracy, unions etc).