I think that this is going war for earning from new sources, such as different taxes upon foreigners, wife tax and children tax (yearly double), visit tax for pilgrims, job tax,etc.
May be war of fame is also going on between different Princes???
US government intelligence sources and a Saudi art-world figure all confirmed to The Journal that Crown Prince Mohammed was the buyer of a $450 million Leonardo da Vinci painting of Jesus Christ.
On other hand Prince himself purchased high price art paintings http://www.businessinsider.com/saudi-arabia-crown-prince-mohammed-bin-salman-da-vinci-painting-2017-12
Strange!! Is not it??