The bigger harm Russia is putting onto itself is its inability to take part in the AI race. They've left the battle over to the US and China, while the EU at least isn't idling.
If they wouldn't have started the war and have at least pretended to be good friends, they could have used their vast amounts of energy resources to run huge datacenters (which they could then have used to start a war). Worst move ever made by a ruler.
The US and China are both profiting from this war.