Sanctions imposed by the UN, what did I miss?
It seems that you meant to say the US, right? Though I don't think that those are the primary drivers of underdevelopment. And neither has Putin anything to do with that (i.e. not being prosperous), though. Too many resources is like a curse which puts people living off them into an idle mode of operation, so to speak. Look at Japan, for example, it doesn't have anything (it is just tiny) but has population quite comparable to that of Russia while its level of economic development and overall well-being by far surpasses Russia's
If I remember right, economic sanctions were imposed on russia years ago. Maybe as far back as 2014? Those sanctions took a toll on russian and european economies which can be measured in the billions of dollars range.
The suicide rate in japan does surpass the suicide rate in russia. In terms of overall "well-being" an argument could be made for russia having an advantage over japan.
I don't know what ratios of wealth or wage equality look like in either of those countries but that could also be a good metric to gauge "well-being" as could average number of hours worked per day, which I would guess definitely falls in russia's favor.
There's no doubt japan's technical sophistication is probably than russia's, at least outside of weapons of war. But that sophistication comes at a high cost in terms of japanese historically working and studying ridiculous hours to gain a small advantage.
There was a documentary done years back where impoverished africans from the poorest communities visited america and commented on how they felt sorry for americans they got to know, because all they seemed to do is work & not have time for anything else.
In that, I do kind of disagree with textbook definitions of what a nation's "well being" mean.
The sanctions were imposed by the European Union and United States
The United Nations couldn't possibly impose sanctions on Russia since that would effectively mean Russia imposing sanctions unto themselves. This is an unlikely event, by any means. Regarding suicide rates in Japan, it seems to be an obvious outcome of overpopulation. There is a whole scientific theory explaining this and other similar phenomena. For example, wars and epidemics should be considered as natural events aimed at preventing overpopulation (according to this theory). Right now when there are no more major wars and devastating diseases (like the Black Death in the 14th century), this function (of preventing overpopulation) went to big cities since in such cities people don't multiply. And therefore high suicide rates may be construed as just another such tool that nature invented to limit unrestricted population growth