So, now I am a god. I created a brand-new universe. A small planet within it contains sentient creatures. I've got the power. I can wipe them out, make their lives miserable in countless ways, turn their world in to paradise or just choose to do nothing and let them be.
Since morals and ethics are largely relative even within the cultures and civilizations, I am not bound by their standards but they are also not bound to my ow codes. I can judge them and they can judge me.
Yes, I have the power to decimate them, to make them kneel and submit to my will. This will not automatically turn me in to a good god. Some of the things I do will not be considered good by the folks living at that planet just because I can do them or command my minions to do them.
Don't agree with me? Fine, lets make a thought experiment. Put yourself in the place of a guy living inside a city at that planet. You have a wife and three kinds - 15 years-old boy, 13 years-old girl and a 2 years-old toddler. Suddenly a horde of invaders appear and overcomes your city's defenses. You see all the killings and ransacking around the neighbourhood. Now you see a group of invaders storming in to your house. You and your son try to defend your family, but its useless. Now you are watching your son's death; one of the invaders bashes him with a shield while others strike him with swords and axes. As you towards him your leg is hit by an axe; you fall and a sword opens your belly. You see your guts coming out of the gash and falls on the ground where you lay stunned, bleeding and dying. Now, picture yourself seeing the invaders beating, raping and killing your wife. See that corner of the room? Right there, watching it all, crying, are your daughter with your toddler in her arms. As your consciousness fades, you see some invaders grabbing you daughter. "Pretty girl..." one of them says. "This one is mine". Now you see the invader taking your youngest son from her arms and unsheathing his sword.
Now you die, knowing its all part of my plans. I commanded the invaders to do my will. I told them to kill you and your family, to enslave your daughter. Have I told you about hell? Well, its waiting for you. Its because you - or someone else - had sex or did something else in ways I do not approve even if you didn't knew it. See? It was all your fault. But rejoice, it was for greater good, I write straight with crooked lines and I love you. Oh, since I am a powerful god and created its all, I can do whatever I wish and it will be the right thing.
Still think I am good? Still think I deserve worship? Still think I am just and fair?
Pleased to meet you, hope you guessed my name.