It weakened Russia immensely and I still fail to see any benefits for her from it. Maybe I'm just missing something.
We were already as weak, as we could possibly be.
By which criteria were we weak? Let's see:
1) Within the financial system of the time, we were forced to keep all our money with Western custodians. The minute we misbehaved, they stole it all. How can you be strong, when someone else controls the purse strings?
2) The very heart of our historic empire, was slowly drifting away, while holding up a middle finger to those of us it was leaving behind. It did this after stealing from us with impunity, glorifying the butchers of our people, and spitting in the face of all those who spilled blood for it. How can you be strong, when you do not command the respect of even those closest to you?
3) Crooked oligarchs funneled away the riches of the country, into Western real estate and football clubs. Russia acted merely as a source of wealth, but not some place where they could see a future for themselves. How can you be considered strong, when your supposed elites do not consider the country a place worth living?
4) A house divided cannot stand. The idea of Russianness was under great strain. The glue that binds the 190 ethnic groups of Russia, has always been the greater glory of the country. In the years leading up to the war, the search for a unifying "idea" did not bear much fruit. That path of inertia, was a path in one direction.
So you see, Kania, what was left on the table, was not much at all. Now there is a chance to build a proper Russia, in the time tested way of relying on our strength and not waiting for any handouts from the lords' table.