No- talents become celebrities all the time. Despite immense differences in cultures, heroes around the world generally share a number of traits that instruct and inspire people. A hero does something worth talking about, but a hero goes beyond mere fame or celebrity. The hero lives a life worthy of imitation. If they serve only their own fame, they may be celebrities but not heroes.
Heroes are catalysts for change.
They create new possibilities. They have a vision, and the skill and charm to implement their vision. Heroes may also be fictional. Children may identify with a character because of the values projected. Adults need heroes too, but the need is even more urgent for children because they don't know how to think abstractly.