Person with an IQ of 110 (rarity of 1 in 4) means that person is in the 75th percentile or in the top 25 percentile.
Person with and IQ of 120 (rarity of 1 in 11) means that person is in the 90.87 percentile or in the top 10 percentile. IQ of 135 is the 99th percentile or 1 in 100. The average nobel prize in physics laureate has an IQ of 159. That is the rarity of 1 in almost 24000 and is the 99.9958094411 percentile. I would say economy is led and general advancements made by the top 0.01 percentile. The rest are working bees.
As you have said the more important thing is in having the big number of high IQ people not the big average although it may or may not come hand in hand. AJs have about 4.5 times 140+ IQ people per capita then most other nations.

