Also of note is that there was a sort elitism, or rather legitimacy, connected to the older stable monarchies of industrialised nations. This was undoubtedly lead by the British royal family and Queen Victoria, as she was the Head of the largest and most powerful Empire in the world.
The Tsars were regularly criticised in the free press as tyrant autocrats (AIII & NII were particularly unpopular). Their excessive wealth and pomp was often viewed as vulgar, and the political uncertainties often provoked a sort of sympathy.
I imagine a likely parallel in modern times would be Arab princes, Emirati or Saudi. They often mix with the British Royal Family, and I'm sure QEII has some envy at the amounts these Monarchs are able to spend on their stables, not to mention their billions, however I don't imagine they'd readily swap places.