I really didn't think I could be shocked anymore by the excesses of dictators. But I've been following the story of Alexei Navalny for quite a long time. He did a documentary on Putins Palace amongst other investigations & posts. This link is not Navalny's, but it is very detailed.
https://www.youtube.com/watch?v=dQbCOYnp_fA
There are several "security" services operating in Russia. The SBP is the presidential security service. The FSO is the federal protection service. Intelligence services are the GRU, FSB & SVR. Putin is known to be paranoid, probably with good reason - If I were a Russian I'd probably think I would be doing the world a favour if I helped bring him down. The measures he takes to avoid anyone having the chance to get to him are amazing. He has had a lot of time to refine the techniques he uses to remain safe & in power.
https://www.quora.com/How-secure-is-Vladimir-Putin-in-his-position
As of 2023, Russia's economy is forecast to be among the largest in the world by nominal GDP, with a value of approximately USD 1.9 trillion. Russia remains a significant economic power with a strong resource base and a diversified economy. However, the ongoing war in Ukraine and Western sanctions will weigh on GDP growth ahead - Focus Economics - Russia's Economy.
According to NDTV World Putin is said to be worth $200 billion. What is it with these corrupt leaders? Just how much money does any one person need? It simply isn't possible to spend it in a lifetime, no matter how many palaces, yachts & aeroplanes you've got.
My conclusion is that it's the "Little Man / Napoleon" Syndrome. A psychological pattern in which people, often men, feel inadequate due to their height and may overcompensate with aggressive or domineering behaviors. It's thought to derive from anxiety & feelings of inadequacy & inferiority. Causes include being bullied or teased about physical appearance, leading to insecurity. Some people respond by constantly attempting to prove themselves, leading to hostility & aggression.
Life for average Russians is not wonderful.
https://www.oecdbetterlifeindex.org/countries/russian-federation/
I imagine that living in a dictatorship, with huge variations in wealth, power & influence must be very hard indeed. Not having any access to truth, only propaganda - defined by Lenin as the "reasoned use of historical and scientific arguments to indoctrinate the educated and enlightened", must make you feel very powerless to change anything.
So those brave people who do stand up to people like Putin deserve our help. Not just words, but action too.