Making the world better, one answer at a time. Sacajawea is a hero because she was an interpreter for Louis and Clark and she helped them get food and supplies from the Indians, and she did it all with her papoose (her baby) on her back.aking the world better, one answer at a time. Sacajawea is a hero because she was an interpreter for Louis and Clark and she helped them get food and supplies from the Indians, and she did it all with her papoose (her baby) on her back.