Regarding improvement of Crimean infrastructure — Stalin also implemented grand infrastructure projects, yet average Russian towns which serve no immediate imperialist or geopolitical interest wallow in 3rd world conditions - despite their sizable populations. Same rule applies today.
Take roads for example. Nationally, Russia’s has roads worse than that of some African countries. (Or none where there can and should be.)
You can bet most of the pipeline money via its deals with Germany ends up in the pockets of Putin’s crony oligarchs personal bank accounts...not on genuine pursuits of infrastructure.
And while the World Cup has been “distracting” Russians these past few weeks, the Kremlin has instituted all sorts of new draconian measures to further consolidate their power.
However it is sweet that in the town of Samara, citizens took the order to take less showers or to shower in pairs so that foreign soccer fans will have enough running water to spare.
So your problem with improved infrastructure is?