I think some people are truly happy being just a gear or a screw.
Some people need to be mindless cogs. Someone else makes all the decisions and accepts all the responsibility for those decisions. The cog is free from responsibility in their own lives.
Why do you think believers get so offended when you tell them to think for themselves? You are threatening their only perceived means of survival: following the minds of others.
Many mental and emotional followers cannot even comprehend mental and emotional freedom. It is a foreign language they have never bothered to learn.