It's a matter of budget. When you do things that don't matter too much to you, you are damn happy to think exactly like the next guy, reusing the existing knowledge as is without a second thought.
For instance: how do you boil an egg? For all I care, I leave it in boiled water for 10 minutes. I am more than happy to never challenge this conventional wisdom because I'm spending all my time trying to think out of the box while searching for a new sorting algorithm.
Now put a chef in my place. They could have their own specialized/unconventional boiling technique while saying all sorting can be done with bubble sort.
Always restrict your conclusions within the appropriate context. For every person different things matter, you can't think for yourself for every piece of knowledge. There isn't enough time. If people didn't copy and follow along (while inovating in their special domain) we would still live in the stone age