Humanity sinned when they were first created, having acted directly against the Word of God. Nevertheless, He has no desire to keep punishing us for the wicked things we do. He doesn't take pleasure in it. But sin is its own punishment. God showed us He was loving and forgiving when He sent His Son to die on the cross to save us from sin and give us eternal life. Everything has a part to play; nothing is coincidence. It was designed this way for a reason. We often ask "why this and why that," but yet, couldn't possibly comprehend the complexity of it all because we don't perceive things the way God does. He is omniscient and is able to see everything as a whole, whereas we only see small parts and then ask why. Wickedness, too, serves a purpose, just like love and forgiveness. It was designed that way.