I think the person this song is directed at is someone who was in a relationship with the singer. But now the singer has gotten bored with them, ie: "I've come, it's been fun, but won't you please disappear?"
Alternatively, the singer has been using them, and can't get any more out of them, be it pleasure or anything else - "Something tells me that you can't further my career".
Possibly, this person is power-hungry and uses people like the one they are singing to to get more power. And it works. If they are king, they may reason, they make a person think they can be his queen, and then play them for a sucker. And they get away with it - "Had a master plan, now I rule the world..." and "No one can stop me".
I think the person this song is directed at is someone who was in a relationship with the singer. But now the singer has gotten bored with them, ie: "I've come, it's been fun, but won't you please disappear?" Alternatively, the singer has been using them, and can't get any more out of them, be it pleasure or anything else - "Something tells me that you can't further my career". Possibly, this person is power-hungry and uses people like the one they are singing to to get more power. And it works. If they are king, they may reason, they make a person think they can be his queen, and then play them for a sucker. And they get away with it - "Had a master plan, now I rule the world..." and "No one can stop me".