I sympathize with your sentiments because it's very difficult to break out of the "conventional wisdom" of the zeitgeist.
If it helps, consider that the idea of democracy was very radical to the age when conventional wisdom said only property owners deserved political power. After all, the country does belong to them. In comparison, the idea that everyone had equal say was basically inconceivable, and function infeasible with lack of ballot technology anyway.
Now substitute the word economic for political, it's similar to how capitalism works today. The factory owner gets to tell you what do because he owns the place. "Communism" as an idea wasn't any sort of immaculate conception, but the simple application of democracy to the economic realm. Socialism was just an intermediate step from capitalism (ie aristocracy) whereby only the factory employees (the stakeholders) are given input rather than everyone.
As to the "impractical" argument, as mentioned folks must've had the same reservations before all the implementation details of democracy (eg republics, parliament, congress, etc) were hashed out. For example, in your computer case, it might be simply recognized that sharing some things is not practical and thus some system of reservations/allocation is devised, just as we figured out who gets to write laws when it's clear not everyone can it simultaneously (or otherwise it becomes a mess).