Cholesterol is your body trying to heal damage caused by other things, such as too high of blood sugar or PUFAs (Poly Unsaturated Fatty Acids), and not the cause of the damage itself. It is a side effect.

Also our brains are partially made of cholesterol. If we don't have enough cholesterol, our brains suffer. We definitely don't need that. Could there be a correlation between pushed low cholesterol and people not thinking for themselves? I don't know.