The 99% are not as dumb as a box of rocks.
Have a look at Normal Distributions. If you look at IQ scores, 100 is by definition “average” - that is the peak where the normal curve is. 50% will be at or below 100 IQ and 50% will be at or above 100. The actual numbers beyond that depend on the test and that validity of such tests are hightl contentious (due to cultural biases and biases of what is tested - intelligence is difficult to define but is more than memory and even problem solving).
Assuming a simple symmetric normal distribution, 97% will be within 2 standard deviations of the mean. About 1.5% will be above that and 1.5% below that.
But that is not to say that anyone from 50-97.7 percentiles (score of 100+) is unintelligent. Plus people have different skills and areas of intelligence. Someone may be in the top 1% when it comes to mathematical ability but not when it comes to English literature. Also someone may be incredibly artistically creative but useless at maths.
So there may be different normal distributions for different facets of intelligence. A different 1% of people may be at the top for maths ability compared to the 1% of people at the top of science or writing or medicine. That’s also not to suggest that everyone is a genius at something, but rather that there is more variability and value in people at the top end of the curve than just the top 1% by one measure.
Most people are not as dumb as rocks. However it is true that by definition over half the population will have a below average IQ. However I’m sure a large majority of people imagine themselves to be in the top 50% - no one wants to believe they are unintelligent.
Unfortunately stupid people who believe they are intelligent are a dangerous thing - just look at some of the politicians spouting moronic nonsense yet are high profile and powerful. Now multiply that out to all areas of life and you have a problem. About half the people you meet in life are likely to be below average intelligence - assuming you mix freely and randomly. If you don’t mix freely then you may be in a biased bubble where you spend time with people of a similar intelligence and not appreciate the true variation. I think that is more important than worrying about the 1%.