Intelligence or IQ rather is missunderstood.

The thing is that an IQ score is an overall score off your cognitive abilities.

The word "overall" being key. One thing tested is hand-eye coordination, but how well you can shoot basketballs from various angles has virtually no use in solving business problems.

Another thing is how well you can memorize things from audio. Very cool if this part off the brain is well developed, but we have Microphones to store audio, and has no real usage in solving a business problems.

Some modules like visual-spatial reasoning and things like syllogisms could apply to real world problems in terms off understanding inherit logical conclusions, but it's just one module off many.

You can get an average off 130 with 120 on such a module, and someone else could have an average off 110 with 120 on such module, and if the job only requires this type off cognitive abilities, there is a high chance they would perform the same even though their overall scores are quite far apart.