To be honest I am not too worried about it, but for different reasons to you, I am of the school of 'if we are fooked worrying won't help'.
That said I do like to know what way the bullet is coming and on what day if I can.
So saying, bro it is a very interesting topic in of itself, if you remove the existential threat to mankind stuff, it is still a very interesting field for some of us.
A super intelligence will have nothing to do with the people who created it or their original motives.
A super intelligence is beyond our comprehension.