The Saudi Arabian kingdom is in no position to implement severe austerity measures, like Russia. The vast majority of Saudis enjoy their standard of living due to government handouts.
Saudi citizens tend to lack employable skills and are culturally not inclined to work. Of the30 million residents, only 5.5 million work and 3 million work directly for the government. The small private sector tends to employ foreigners.
Yes, I realize that this could further destabilize an already chaotic region, but - this is deliciously sauce for the gander, is it not?