Sharing is a universal concept but it has little to do with top-down politics. Forced sharing, despite the Left's endorsement, is in fact an oxymoron. In reality, anything forced by the state is either a tax, theft, or both. Arranged marriages, contracts, even language itself are conventions conceived in an effort to temper humanity's natural tendency to grab things we want without asking. This is why we teach manners to children, because grabbing is perhaps the first human impulse.
Japan has great social capital and can keep things like crime down.
Russia's social capital was systematically demolished by Communist rulers, so that today cheating and stealing are considered part and parcel of good business. Of course, in times of extreme scarcity manners and traditions can be overwhelmed because hunger can always trump politeness. If my kids are starving, I will be more inclined to ignore niceties trying to feed them. Generally speaking, that's what manners and traditions are for. But because the story of mankind is rich in poverty and short on abundance, we don't have a good idea about what to do during the fat years.