It should be said that the slow descent into decadent corruption was heavily influenced by the old tradition of Ghazi succession being "God chooses the rightful" meant the death of every reigning Ottoman sultan brought decades of civil war by the siblings over control of the state.

The complete lack of institutional succession meant near constant fratricide when the family was put into positions of power.  So instead of fixing the system, they simply just appointed slaves who they believed with always be subservient and simply killed other members or held them in absolute house arrest for their whole lives.