I don't have a number in mind, my feeling is directional.
I also don't think compensation is the only/best tool to prevent or punish bad decsion making. There have been cases where developer/dba have put companies out of business with a poor decisions. We don't pay them millions of dollars to 'get the best' we put processes in place to prevent issues like that. Otherwise, I'd suggest doing the same thing to the bad CEO that you'd do to other employees: fire them. That's why you have a board.
I also don't think compensation is the only/best tool to prevent or punish bad decsion making. There have been cases where developer/dba have put companies out of business with a poor decisions. We don't pay them millions of dollars to 'get the best' we put processes in place to prevent issues like that. Otherwise, I'd suggest doing the same thing to the bad CEO that you'd do to other employees: fire them. That's why you have a board.