I think we're talking about different things when we say "consciousness". A lot of people do well in life, are intelligent and competent, but not aware of the whole picture, or rather unwilling to open their eyes. Many of my colleagues and acquaintances are like that. They're definitely not stupid - many of them are good scientists, and are able to relatively well judge things and so on, but they still have stale and close-minded ideas about life. It's not that they don't have the potential to be aware, they just don't want to be.
So I do believe that if you want to be "successful" (by society's standards) in life, then you have better chances if you don't think too deeply about universal questions and just do what you're told. I personally don't see it as a valid way to live life, but it's just my observation that it helps one be more "normal".