So, in my definition, ego is almost the same as egocentric. A slight difference is that egocentric is the exaggeration of ego. I don't deny ego to some extent for our physical survival as the right to live. In fact, ego (separate self) and true self (non-separate self) are interdependent. They are the right side and the left side of a sheet of paper. If we remove ego, true self is also removed. If ego is there, true self is already there. This is called Emptiness (interdependence) or Middle Way in Buddhism and is the way how to transcend the duality.
I feel that most of arts and sports are the sensory level satisfaction which is temporary. I don't deny it if it doesn't harm others but it changes to anger and hatred if it exceeds the limit. In other words, they are nothing but attachment or addictions. Of course, there may be some exceptions which can offer the mental level comfort which is long lasting.
Ginko tree tunnel Photo by Aes Holding