But this is still the crucial flaw in Marxism, be because some greedy bastard will control means of production either way to their own benefit, and I'd rather that be owned by a professed capitalist who is regulated by the government rather than owned by the government that then regulates itself thus accountable to no one. This was really the major flaw in Marxist systems, the fat cats were given authority to govern both the public and private sector to their own benefit, no counterweight.
That's a major point of the article. In his work you have a part in which he identifies the problems (eg Das Kapital) and another part which proposes a solution (eg The Communist Manifesto). In medical terms Marx made a good diagnosis, but a bad prognosis (as demonstrated by history).
I think it's important to differentiate them. Marx wasn't a religious prophet, you can take the good stuff and leave out the bad. Even he said in his later life that his goals could be achieved by democratic means.