Axolotl said:
Ryan, Fonmtaine only did what Ryan's philosophy dictated he should do, he was exactly what Ryan wanted people in Rapture to be.
No he didn't, though that appears to be the case from a cursory glance.
Ryan's philosophy (fairly standard Objectivist philosophy) is that the individual, and individual freedom, should be respected at all times by all people. It's a derivation of Deontological thought. Fontaine did not respect individual freedom. He abused the freedom he was given to manipulate and control as much of the populous as he could, to further his own ambitions, which directly violates many of the Objectivist principles.
The way I see it, the downfall of Rapture was the fault of both Fontaine and Ryan. Fontaine initiated the war to seize control, but Ryan abandoned his principles to meet the threat. If Ryan had remained true to his philosophy, much of the damage could have been averted.