Steve Rogers was bullied his whole life. When he was given power, he used every bit of it and dedicated himself to destroying Hydra and saving the world.
Grant Ward was bullied his whole life. When he was given power, he used it to take advantage of people, kill people, and help Hydra take over the world.
There is a difference between hero and villain, and this is it.
OH MY GOD WHAT SORCERY IS THIS