"Hand in hand with this centralisation...
...or this expropriation of many capitalists by few..."
As Marx describes:
"One capitalist always kills many. Hand in hand with this centralisation, or this expropriation of many capitalists by few, develop, on an ever-extending scale, the cooperative form of the labour process, the conscious technical application of science, the methodical cultivation of the soil, the transformation of the instruments of labour into instruments of labour only usable in common, the economising of all means of production by their use as means of production of combined, socialised labour, the entanglement of all peoples in the net of the world market, and with this, the international character of the capitalistic regime."
The "socialised labor" and "instruments of labor only usable in common" described by Marx perfectly describe the internet/world wide web, which is the latest and highest expression of this process.
He observes:
"Centralisation of the means of production and socialisation of labour at last reach a point where they become incompatible with their capitalist integument. This integument is burst asunder. The knell of capitalist private property sounds. The expropriators are expropriated."
So what has been happening with the capitalist meltdowns of 2001, 2008, and now is that this integument is bursting asunder. The captains of international finance capital have known since at least 1867 that such things happen on a regular basis. They know that these crises are getting worse because of the advanced nature of socialized labor. What they fear is that they as the expropriators will be expropriated. That's why they are literally eliminating workers and enslaving those remaining. They have done their best to hide themselves and their reasons, but things are becoming increasingly clear to people.
Marx didn't think they were Satanists or aliens. They are people just like we are. Absolute power corrupts absolutely and that is what happens to them.