Humanitarian intervention can help to stop the most urgent crises around the world. Whether it is helping to stop hunger, abuse, disaster recovery or something else, humanitarian efforts are vital to stopping the crisis. In some cases humanitarian effort is the only effort that is available to stop a crisis.
Yes, we need humanitarian intervention to stop the most urgent crises, because it is only intervention that can make a difference in these crises. The human race should have solidarity with other people in suffering, and should devote resources to trying to combat human suffering. Human rights issues are the most important in the world, and rich nations should devote time and money to interventionist efforts, rather than allow fellow humans to suffer needlessly.