[ceeplusplus]

It's the result of making IQ tests for jobs illegal. Leetcode and the trick questions asked in finance are just IQ tests in disguise. You can't regulate your way out of the market - if companies want smart people they'll find a way to hire smart people.

[koolba]

IQ tests for employment are not inherently illegal. It’s only illegal if whatever you’re testing has no bearing on the job so as to be used as a proxy for discrimination.

So a job that involves complex problem solving in unique situations would be perfectly reasonable to have an IQ test qualification. But not for something like sweeping the floors or working the assembly line in a meat processing plant.