Bioshock tries to portray Ryan as an insane ideolog which he sort of is, but he's right in so many things he says.

“Lacking its own ingenuity, the parasite fears the visionary. What it cannot plagiarize, it seeks to censor. What it cannot regulate, it seeks to ban.”

“An artist strives to frame his ideals in an image; to challenge his audience and to make his vision immortal. But the parasites say 'no, your art must serve the cause... your ideals endanger the people!'”