You see what (you) want to see.
Every day there are selfless acts and charitable things done.
Simply Google (charities, donations, volunteer groups, not for profit organizations) You'll discover thousands of people and firms dedicated to helping those who are less fortunate around the globe. UNICEF, Red Cross, United Way, and Food banks...
In the U.S. the last 5 minutes of the news usually contains a "feel good" moment where someone or a group is making an effort to help others. Some people risk their lives for strangers.