Who parasitizes whom?

"People who dismiss the unemployed and dependent as "parasites" fail to understand economics and parasitism. A successful parasite is one that the host is not aware of, one that can make its host work for it without the host perceiving it as a burden. Such is the ruling class in a capitalist society.” – Jason Read, professor of philosophy at the University of Southern Maine.

An element of ownership may perhaps be good for society, but it must never become more sacred than the general welfare.”