Because so many people give up the ability to think for themselves. Instead of doing research themselves they'd rather give into the common consensus and take whatever the media produces as God's word. People would sooner question their own religious standpoint then what they hear on TV.

People are brought up from cradle to grave with the belief that what we hear in school or what we're told by the media is fact because it's assumed that whatever is documented is fact. In school we're brought up being told what to think, but never how to think. I guess the thought of how the system works never dawns on them, so they can't really see the control. Before one could even start believing the Illuminati exists they have to realize something is wrong with the system.

You know the Illuminati exists, I know they exist; but there was a time when our level of awareness was closed to knowledge. Think of what your own mind set was like before you woke up. We all have our own way of discovering truth. I don't know about you, but before I began researching this secret cabal, there was a moment where I started to question the official story and ask "Well how do they know that?" Most people who are still asleep just need to hear "Experts say..." on the news and they take it as fact. Do they ever ask, "Who are these experts?"

Some people simply don't want to believe it for various reasons; not necessarily out of fear but because subconsciously they don't want to accept the complexity and maintain the belief that life is simple. People will simply deny it spontaneously because nobody wants to admit to being duped. It is much easier to attack someone for claiming something completely contradictory to the official story then it is to open their mind to suggestive reasoning.

All truth goes through 3 stages; first it is ridiculed, second it is violently opposed and 3rd it is accepted as being self evident. Before people can begin to listen they must want to listen. But our society has been conditioned in such a way that we're told we can believe whatever we want without any retribution of the government, however people degrade other people for doing something stupid (It happens), so when people begin talking about a massive conspiracy others will jump at the shot to ridicule them because their behavior is so out of the ordinary, not because it's untrue, but because any normal person wouldn't think this way. People would rather just shut down and maintain the belief that they're right, although their belief was not their own idea, they accept it as such, then listen to the contrary. Unless you can ask questions that will catch their interest, they will always defend the official story as if it is their own.

Upon looking at MPH's answer, I must snicker at her naivete. The information is there if one chooses to look it up, but just because the media doesn't report on it doesn't mean the proof's not there.