You failed to understand the point. Do you think the definition of intelligence is being well versed in "confusing/impressing others with lots of complexity" continually? If so, consider yourself fooled by them. The most intelligent people are able to express their viewpoint clearly enough, without the need to resort to to this practice, because they can easily break down and express the argument clearly and simply enough, so that even laypeople can learn and understand exactly what is being said. It's a gift to do this. Probably not so easy to achieve.

You could compare this a little like the following. You can get people who are quite well off, but not as much as they would like. They may impress others by appearing much wealthier than they really are. The cars, the clothes, the house etc etc. Then you can get others who are of another class altogether. The TRULY wealthy, who can be mistaken for any ordinary "joe bloggs" because some don't feel the need to prove anything by donning the gear to appear so.

This is why some highly wealthy individuals will often sport ordinary clothes and tattier brief cases. They aren't the "would bes if only we could bes".