The average Russian citizen is extremely poor. If Ukraine can continue to damage Russian refining capacity to the point that domestic gasoline prices soar, that will disproportionately impact the average Russian to the point that the government may have to step in and subsidize costs so that the people can survive. That's less money that Russia will have to spend on their war effort.
Ukraine has already achieved one objective. They've done enough damage that they've forced Russia to ban the export of petroleum products and and distilates for a period of 6 months, out of fear for domestic shortage. That's billions of dollars worth of foreign profits that Russia won't receive this year. Even more importantly, that's billions of dollars worth of foreign currency that Russia won't have flow into its economy. Nobody wants the Ruble. It's Monopoly money. It's not worth anything. Forcing Russia to further exhaust their foreign currency reserves will not only hurt their ability to trade internationally, it will further inflate the Ruble, damaging their purchasing power.
You misunderstanding following:
1. russian government <- there are no such thing. It is like this -> putin and mafia circle controling all. (there are no laws or state institutions. All are obeying what putin circle command)
2. If and only If you are citizen living in moscow and saint petersburg then subsidize costs so that the people can survive is applied.
3. All other regions are already poor. people living there were poor before the war and will be poor, living as poor after.
4. Money and monopoly is a Fact before War and after the War will go to same overloards/oligarchs
5. There were never election (I mean what you know as election). It is theater farce, Neo-Despot allways win. There are no opposition, if any try to oppose despot he/she is killed or in prison and killed.
In this case putin is despot so he will win with not 100% but with 120-180% .This is to show to all out there to GET IT RIGHT. They mean to show that despot POWER is in sync and undisputable
Besically west people do not have a idea how ruzzian live. Only if you live in moscow and saint petersburg there is some kind of standard. Other that it is just survivel and people have to learn what is to be poor.