Yes, it has a regime.
> It’s the most powerful tribal family in a country of family/tribes all of whom have the same perspective.
Yes, the House of Saud is that, except not all the family/tribes have the same perspective (heck, even the House of Saud isn't internally super cohesive, though MBS’ recent internal purges and the implicit threat of more have reduced the degree of active viewpoint diversity within the House of Saud and Saudi elites more generally.)
> Never mind the fact that it’s a very rich country in country with obnoxious human rights abuses when it comes to migrant workers but still has no poverty. Even amongst the migrants.
Saudi Arabia has a low reported poverty rate (but not zero; 12.7%) but it's reporting is irregular and unreliable, and is generally held to underestimate poverty significantly in general. Poverty estimates among the migrants make up the bar majority of the labor force (and the vast majority of the low-skill labor force) are very high.