I will admit that as a totally amoral and willing tool of the super-rich and super-powerful, Roy Cohn's career benefited enormously from his lack of morals and shame. But that's no different from any lawyer for organized criminals. If a lack of morals can be considered a talent, he had it.
Update: Oh, no, on the contrary. The Communists and other Marxists and such associated jerks as anarchists have done enormous damage to the United States. But it is in their role in associating themselves with the genuine American left and so discrediting the egalitarian-democratic left, weakening the real left, disempowering the American left, distracting it from its real obligations and goals. One of the most effective and, so, worst ways they did damage to the American left is through duping the democratic left into feeling sorry for them and championing them and a raft of stupid positions that were either stupid or counter-productive.
It is in the egalitarian-democratic left, traditional American liberalism being damaged, discredited and disempowered by the Communists that their real damage to the United States came, not through idiotic bumbling attempts at old-fashioned espionage and their absurd Socialist-realist-Eastern-European agit-prop bull shit.
It's Stalin's ideological grandson, Putin, who has managed to do what he did to us and a lot of that was done through the tools handed to him by the dupes in such groups as the ACLU and the "free speech" industry. Those. American trash TV and computer technology did what Stalin could never have done.
If liberals had sensibly rejected Marxism and anarchism and realized they were the enemies of egalitarian democracy from the start, we'd have a far, far better country right now.
Update 2: If traditional American style equality and democracy liberals were damaged by their getting suckered by the Marxists, socialism was pretty much entirely trashed by the same thing. We can't even start to realistically hope for a restoration of socialism, which must be egalitarian-democratic if it is to exist as a legitimate entity, until every aspect of the terminal cancer of dialectical materialism is removed from it. Especially the materialism of it. Materialism is fatal to egalitarian democracy.
Personally, as a