Until you put the fear of the electorate, and deny them the royal lifestyle, there will be no change. Time and again the voters have proved to them that they can do just about anything they want and continue to be returned to office.
They have made the path to reform so long and complicated and convoluted that it’s functionally impossible to slake their greed and force them to live like those who must support them and run the state the way a business would be run.
These days I think you mean the way a business “should” be run. :)