If millions of people die in a war in Russia, the government doesn’t feel anything, because they are not the ones going to war. If their own people turn against them, they feel it.
But, at least in Russia, they don't and they won't because that's not how power transfers work in this country.
Alexei Navalny was the last person attempting to change this, but he failed.
Also Russia has its own social media, search engine etc., so some information simply doesn't reach the common Russian.
Over here in eastern Europe as far back as in the 00s there was the concept of "Russian internet"(Runet) - it wasn't technically sealed off from the rest of the world, but was more a small, independent world in and of itself that exchanged information mostly internally, in Russian.