Oppenheimer nor were any the scientists involved in the Manhattan Project, told the full extend of the atom bomb's potential. It wasn't until the tests were done in New Mexico that Oppenheimer realized he created a weapon that could wipe out the entire human race within minutes. He realized the destructive power of a God wasn't meant for humanity's hands.

Richard Gatling when he built a machine gun to replace 100 soldiers but the army just ordered 100 machine guns