Roberta Lage wrote a great article about U2.
"U2 has evolved with their music, causes and humanitarian work.
The music of U2 has always been about causes along with heart, mind, body and soul."
"Down the years the band has been more involved in causes trying to make the world a better place.
From Amnesty International and Greenpeace through to DATA, ONE, (Product (RED) and the Chernobyl
Children's Project. U2 has been contributing with benefit concerts, songwriting, public campaign, fund-raising projects promoting a range of charities and activist communities worldwide."
U2 shows how taking up a cause is a real commitment, not a one shot attempt for media attention.