If you take a look at history, the impact of 1 has redefined, reshapen, and/or changed its course. By the ideology of Hitler was many killed and medical discoveries made. By Gandhi was the peaceful protest of nonviolence changed the civil rights movement. By Dr. Mays was the life of MLK, Jr. shifted.
So as by 1 was the judgment of sin placed upon all men. The same as 1 was a gift of life given to all men. Adam was created in the image of Jesus, God, upon the earth. The same was Jesus created to do what Adam was not able to fulfill.
Therefore as by the of fence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life.
By 1 person the lives of many can be changed or redefined.
Life redefined by 1.