But still, don't you think it's a little premature to judge your Target worker? Einstein was a patent worker while he thought about and conceptualized Special Relativity. Do you know what that fella' was doing in his free time?
I still agree with the main point though - IQ doesn't mean anything except another avenue of high potential. Just like being extremely physically fit and a better athlete leaves you with high potential to succeed in something physical. A high IQ gives you the potential to succeed in something mental, but you still have to put in the work and do something with it.
You learn a lot more about Einstein's potential by testing his IQ than by looking at his job history. If it turns out that the Target Einstein is too lazy to do any physics, that's OK, the IQ test will still tell you vastly more about what he COULD do under the right incentives.
I still agree with the main point though - IQ doesn't mean anything except another avenue of high potential. Just like being extremely physically fit and a better athlete leaves you with high potential to succeed in something physical. A high IQ gives you the potential to succeed in something mental, but you still have to put in the work and do something with it.