There is labor, and then there is labor leveraged with human intellect, and then there is purely intellectual effort (such as writing the code for a program that makes other people's work much more efficient). Basically, the labor theory of value is pure non-sense. By itself hard work doesn't mean shit when you're a human being, it's smart work that matters. Also most people who get rich are those who learn how to save money, and invest it. This is called leverage, and they don't teach you much about it in the state education system. Socialism or any other kind of redistributive/interventionist centrally planned social schemes will only ever result in the exact thing they were meant to prevent: Chronic poverty and endless monopolies.
Speaking of monopolies, government is the entity which makes all arbitrary monopolies possible in the first place. It is the state who will point to an extremely successful and innovative business, and say look... a natural monopoly! They then punish the "guilty" party while taking their kick-backs in the process. Relevant:
http://i.imgur.com/xqrgb7w.pngThink of Microsoft supposedly having a "natural monopoly" on internet browsers in the late 1990s, what a joke. The truth is there was nothing truly innovative about other internet browsers at the time, and thus no reason for anyone to use something other than IE. In fact IE 5.0 was arguably superior for it's time. Of course the fact that it was Microsoft's OS did give them an inherent advantage, but it hardly constituted the idea that they had an unbreakable monopoly on internet browsers. People think just because their product is slightly better on a technical level, that means somehow they deserve market share. Using Microsoft's browser on Microsoft's OS had it's own perks, so if competitors really wanted to grab market share they should have focused on making more dramatic & significant innovations rather than being a poor loser and running to daddy government to break up evil Mr. Gate's monopoly.
There are two definitions of monopoly, the economic version (which no one uses), and the political version (which everyone uses, and carries inherently negative implications). The truth is not all monopolies are bad, and in fact a lot of the time the reason one company will have a dominant hold on market share in any particular industry is simply because that is the very reason they are able to offer so much value to their customers in the first place. For example I would argue Intel shoving AMD out of the market is a good thing for consumers in the long run, because at the end of the day there's nothing really dramatically innovative or different about AMDs processors any more. What this really means is that software developers can now focus their efforts on optimizing their code for a single architecture, so at the end of the day the amount of relative computing power consumers will be getting per $ spent will actually be higher.