Can Hugs save the world?

We live in a society where we are constantly under pressure to improve, to expand our power as a species. It is said that it is in our nature, that is why we have moved from stone age to the present where we are working to explore the galaxy. However I am questioning if this is true. We have example of tribes still living like our ancestors used to do. I think we certainly have the curiosity to explore and discover, but where this thirst for power comes from? Why do we need to conquer? Is it in our nature because it gives us pleasure or is it the symptom of something lacking?
I think it is a way to overcome the void we feel inside due to the lack of love and primal care we experience since we are children in a long chain of abuses of any kind.
Maybe we should simply go back to the basic of simple care to save humankind and the planet where we live.