Saudis can omly reform their government, which is a monarchy, they don't represent islam or their people.
If muslim majority countries would attempt to restore islam in their countries, first they will have to implement sharia based constitution and ban all monarchies, stop being allied with zionist countries , which will make them on the course of iran.
Add, one the question of salman, he is one among a phenomenon which zizek has described in more detail, an effect of our perception based society, which will see politicians like trump,erdogan,, modi,putin, xi xinping etc as the norm and nationalism de rigueur everywhere. Schoolbuy macron is attempting to project himself as napoleon, xi elected himself president for life. Salman (and sisi and king of jordan in ballistic uniform)too is under this seasonal fever