In his mind, how do you think Michaelangelo justified turning on the Medici?

I think he justified it by thinking that because the Medici were exiled, they would not be coming back to the town, therefore the Medici would never know the he turned on them. Also maybe he thought that if he associated himself with the Medici while there were in exile, nobody would ever buy any of his work because he was associated with people the town did not like. Most likely, I think tat Michelangelo was thinking more about himself when he turned on the Medici, then thinking about the family that brought him up.

http://commons.wikimedia.org/wiki/File:Michelangelo.jpg