Russia is an underdeveloped country. 1/4 of the population doesn't have indoor plumbing. If you don't live in St. Petersburg or Moscow, your standard of living is just not very comparable to the rest of the developed world. It's like if NYC and Seattle were the only two major American cities and the rest of the country was basically Appalachia.

"The Russian military is large and modern, but the modern part isn't large and the large part isn't modern" is a basically true statement. They have a handful of modern platforms for prestige reasons but in very small quantity, and a large quantity of leftover Soviet trash. And even the "modern" stuff is several tiers below Western kit.