In 2015, the richest western capitalist was Gates with $80b[2], which means Putin was worth 2.5x more than Gates.
Another example of how these kleptocracies tend to funnel wealth up into the top is Kadafi, who was estimated to have died with $200b stashed around the world[3]. At that time, Bill Gates was worth $61b[4].
Without proof, I grant that you can believe whatever you want about Xi. But you can believe he's a unique benevolent snowflake in the history of totalitarians, or you can believe he's just like the rest. I'm going to assume he's like the rest and wait for proof that shows the opposite.
[1] https://cnnpressroom.blogs.cnn.com/2015/02/15/putins-net-wor...
[2] https://www.forbes.com/sites/chasewithorn/2015/03/02/forbes-...
[3] https://www.latimes.com/nation/la-xpm-2011-oct-21-la-fg-kada...
[4] https://www.forbes.com/sites/luisakroll/2012/03/07/forbes-wo...