> Minus marketing and any government interference, capitalism rewards individuals for the value they contribute to society.
I suppose I don't buy this as an a priori equality. One problem is that when there are very large flows of capital, one can often make more money by skimming very small amounts off the top, than by creating new things. That's one reason finance is a better route to wealth than tech startups, even though tech startups create a lot more value for society: because when hundreds of billions of dollars are moving around, you only need to find a way to pocket a very small amount of it to get fabulously wealthy. More generally, rent-seeking, i.e. maneuvering yourself into a position where you can be sort of a private-sector version of the taxman, is a viable way to make money.
Plus, "minus marketing" is a pretty big caveat. It's quite possible to be successful in a "black-hat capitalist" sort of way, by not creating products that contribute to society, but instead by swindling society out of its money by getting people to buy your crap (even in tech, there's a whole affiliate-marketing underworld of tricking people into buying shitty ebooks). And, to pick a third problem, the economy is a rather complex dynamical system, and like many dynamical systems, is not driven purely by fundamentals (real supply/demand), but also by feedback loops and attractors within the system. So sometimes you get some really weird ways of making money that have nothing to do with anyone providing value to anyone else, but have more to do with asset bubbles and debt spirals and other such market patterns.
Not that markets don't often work, and might work even better without the government propping up the corporate form. But I certainly don't think we can a priori say that money transfers are a direct measure of value. I mean, we'd live in a pretty coincidentally amazing universe if it just happened that the economy, this very complex dynamical system that does not care about human concerns like "value" or "society" or "ethics", happened to end up 100% aligning with them. I think instead it's an open question when they align and when they don't, and if there's anything we can do to make markets align with value-to-society better.