[mannyv]

While that may be true, there are people that move the needle more than others.

[IAmBroom]

Certainly. But I can't think of anyone using an idiom like "just another cog, so don't try to do anything".

"Self-made man", "maverick", and various myths about lone geniuses and innovators without collaboration and supporters are heavily supported by (at least) American politicians and pundits.