When we use power and group identity, we hold ourselves separate from other groups of people, and demonstrate our beliefs that some of use are more deserving than others, and there are not enough good things to go around. This blinkers us, There are a myriad of other ways humans can interact to meet the needs of us all.
Traditionally we associate power with the display of strength, winning, and having lots of money and prestige. I think we have power mixed up with the domination of others. It's time to redefine power. To have inner peace and spread that peace throughout the world, THAT is power.