"scientists" is a very general term. Would it really be relevant if legions of engineers and physicists advised everyone that the world is round when they themselves don't put much thought into the problem? The shape of the Earth is hardly something people mull over for more than a few seconds unless they were, for example, to come to this site, a place where RE'ers learn that all the evidence for a round earth is nonexistent.
Also, pictures have been taken of the ice wall:


I think brainwashed is a better word, the only reason that ANYONE believes the Earth is flat, I mean come on, if this site didn't exist you would believe the Earth is round.
The evidence is there, satellites can show you, air planes can show you, anyone with a brain can show you, you simply refuse to see, you are blinded by ignorance.