I have thought about this question for a very long time. I can see advantages and disadvantages to both sides. I mentioned an advantage and disadvantage to both. I really need to think on this one more but would like to open it up for discussion.
Thinking for ones self
One has the benefit of learning things and experiencing things that other people have never experienced.
One often learns and experiences things that other people can not relate too. Therefore, they are often left along with these insights and experience.
Following the Crowd
One don't have to use energy to think. They just do as others do.
One does as others do. If the crowd does something stupid one does as the crowd.