The way I see it, human activity makes the world a lot better place to live and in many instances and in some sense, it also damages the world. This is so because that is the way things are in a physical and finite world where forms and situations are subject to the principle of polarity. A thing, a situation or a relationship may be good now, yet, the same thing, will get sour sooner or later; or vice versa. That is, an activity you may consider bad now is also possible to turn out into something good later.
Take for example, industrial development which provides employment, income and convenience of technology, yet, at the same time, the pollution it creates damages the environment and harm the health of the people it has supposed to serve. Yet, if same problem challenges people to look for a solution or a way to cope, and eventually become successful in applying the solution, then, it can again make life and the world even better.
Life is fluid, dynamic and colorful as a rainbow. We just need to move on. Putting human activity in a box of rights and wrongs or simply black and white could make living quite burdensome . I believe though that the key to a better world is balanced, conscientious and responsible human activities. Thank you for the question.