Two religious states, but there is difference (1)

It is not secret that Iran and Saudi Arabia are a religious states. All people know this fact in the middle east and out side the middle east. It is so clear and well understood that every state is adopting one of Islam's sector. While Saudi is Wahabi's state, Iran is adopting the Shiite's sector and try to consolidate its sector inside and Out side Iran. Although all these facts we should admit that there is a big difference between The Saudi's model and The Iranian one.Iran is adopting an internal democracy in its regime and let its people to share in the state political decision by voting for the parliament and the presidency. They have at least a choice to choose between different political and economical models and an ability to criticize their officials and even overthrew them.