Education would be the number one priority Gay Marriage, polygamy etc would be legalized. Remove christian references in law/governmental areas. Religion in public schools would only be taught factually. (IE, christians believe in X. Buddhists believe in Y, as opposed to X is true because the bible says so)
1) Monetary reform, push for several main currencies. 2) Divide world into 4 economic zones. 3) Propaganda of health, education, family and civil duty above all. Control of population size in different areas. 4) Citizenship reform, divide citizenship by level, from 0 to 4. 5) Reforming the military. 6) up to 20% of GDP goes into science development alone. 7) Socialist-wise control and resource/goods distribution. 8) Capital punishment, penal colonies and work camps. and more...
Expand to Mars and build a fully independent colony with the capability to expand easily, all the while moving all newborns there so as to fully remove human presence on earth within a few generations. Then make sure no one has any historical records and see what happens.
I would strive to be a just leader, but it would be a cruel justice that not everyone would appreciate. As a chaotic ruler, it wouldn't so much be the things that I do, but the things that I sit back and allow to take place. It would generally be a decentralized government relying mostly on volunteers for its help, but slightly more conservative than libertarian in nature. I say decentralised because every part of the world is different, and they should be free to function the way that works best for them and their culture.
To me, justice isn't about ensuring equality, but rather being consistent in the way people are treated, and creating an environment where those who work hard prosper, while the weak, lazy cowards are left on the bottom where they belong. Everyone's different and unique, therefore people shouldn't all be treated the same way, but they should be prepared to reap what they sow. Nobody would be entitled to anything but the bare necessities. If someone is weak they can seek out power to become greater, and if someone is in power, they'll have to work to keep that power. I might interfere a little bit here or there, but only when I really feel that it's necessary. Otherwise it's up to the people themselves to make the world a better place. That way if something goes wrong, they can't really blame me because they did it to each other.
As for religions groups and corporations, they'd have little to no authority over me, and in turn I would have very little power over them. If people asked my advice for how to live, I would give it to them, but in the end it's up to them whether they listen or not.
By the D&D definition of "evil" I would be close to chaotic evil, but I don't really agree with their definition of the word, since the alignment system seems to completely ignore purity/holiness morality. Even so, full chaotic evil is too extreme to describe me, so chaotic neutral with "evil" tendencies fits the best.