I'm not well read on Marx, but since it seems to me that the answers to Luiz's questions are rather obvious I'm posting a few observations:
It wasn't rhetorical at all. I am genuinely curious on how to reconcile a moral/ethical criticism of capitalism with the also Marxist notion that the capitalist must act exactly like he does to bring about the development of humanity.
That the marxist critiques of capitalism resound with the ethical feelings of many different people of all classes was not an argument in itself. That it is aligned with the instinctive feelings of the majority of the population just about everywhere (when they actually wait to think on the issues) is only natural for the majority are "exploited" by a minority everywhere - that is in the nature of the process of concentration of economic power. And grossly speaking the greater the inequalities and the smaller the upper class, the greater the moral revulsion.
The communist motto was always "
workers of the world, unite". It
is about class, communists are not expecting the capitalist class to voluntarily abdicate their position because of their own moral feelings!
Some people who are either born into the upper classes, or somehow made it there, at some point decide not to dedicate the rest of their lives to the accumulation (or mere enjoyment) of wealth and also align, morally, with some of the the critiques against capitalism. But it is not expected that they will ever extinguish themselves as a class, because even if some give up on capitalism others will take their place
so long as the institutions to enable them to do it remain (and
that is the materialist thing).
But Marx does clearly try to highlight and criticize the supposed injustices of Capitalism. It reads an awful lot like a moral critique of Capitalism, though as you correctly said that is not possible within his own ontology (that's why I said I find it contradictory). Also, how can Capitalism be an obstacle towards human self-fulfillment if, again according to Marx, it's a necessary step towards it?
But Marx wasn't preaching to capitalists! He was pointing out to the exploited classes how they were exploited, and why
they should be outraged.
If there is a contradiction, it exists on the minds of those who seek to maintain capitalism as an economic system
even though they themselves feel that they recognize in Marx's critique of capitalism some valid moral reasons!
Luiz, perhaps it is
you who should reevaluate your position, which seems to have always been against any kind of socialism? After all, are you a capitalist or a worker?
Let me pose a similar question to the first one, perhaps one that can be more easily answered: why, according to Marxist thought, should one side with the proletariat (assuming one is not a proletarian himself)? Why is the proletarian' claim to power, again according to Marxist thought, any better than that of the capitalist, aristocrat or whoever?
Because one is a proletarian? Face it, in any given capitalist system, any one, the majority of the people are, basically, proletarians. They may play some role of owners, they may even own stock of publicly traded corporations of some share in a small business. But most of the profits accrue to a minority, always. The rest must live under the economic terms dictated by a minority of the very wealthy. Even the owners of small businesses are at their mercy: for every one that makes it big, how many fail or remain on a level only sufficient to get by?
So the answer is: people should side with
their own best interest. And the best interests of the vast majority of the people is not aligned with the wealthy minority that controls their lives. Sadly they keep letting themselves be distracted from that rather obvious fact of life; what endures is the sense of moral outrage, but not necessarily productive action on it...
Is it wrong, under Marxist theory, to criticize a given capitalist for ruthlessly exploiting his workers? After all, isn't he playing his part in the stage of history just as validly as the workers themselves? Isn't he doing exactly what he is supposed to do to bring about the next stage of development?
Or in another way, still: is Marx saying "this is how it is" or is he saying "this is how it's supposed to be"?
To me it seems he is mixing up both, hence the question.
They are one and the same thing, there is no contradiction. Capitalism is as it is supposed to be. If it were something else it wouldn't be capitalism, would it? Marx was not criticizing the capitalists as individuals, Marx was criticizing
the system of capitalism and the roles it creates. That a capitalist system has capitalists doing their unsavory stuff is a tautology. Focus on bringing one done, another one will step into the void. That's why the goal of communism was always to change the whole system. Fighting against individual capitalists, as in unions vs. bosses, is tactics. It can be part of the "class war" but it can't win it. As it should be painfully clear when concessions won by unions in the past are rolled back.