Protestants are not saying we ought not do good works. You totally misunderstand the Protestant view. Christ is the Sabbath, and we're to rest on Him alone for our righteousness. Ultimately, that rest leads us into a pure conscience, that is passively enabled to do righteous works and charity. So, we'll desire to do good, rather than force ourselves into it. It's a passive hunger and thirst, not an active Hypocritical performance.