These continue to try to show they are "worthy" by regularly attempting to overthrow whoever it is trying to rule Yemen.
At the same time there are parts of Saudi that didn't want in. They are treated brutally by the Saudis all the time.
All is not as it seems in the Peninsula!
It is a mystery there. I go to a couple of Saudi blogs including one called "the religious policeman" which is great and hilarious to get some insight. I have never figured out how much of the House of Saud rally believes in this Wahbbinism stuff. It seems like a pact with the devil to me. I thought I read one time that at some point in this century the clerics were getting out of control and the Saudi family killed a good bit of them and some sort of unwritten agreement has existed between the two ever since