A homeless person usually isn't able to learn what is needed to become a neurosurgeon. So the issue isn't that we don't have enough highly paid jobs - it's that

A homeless person usually isn't able to learn what is needed to become a neurosurgeon. So the issue isn't that we don't have enough highly paid jobs - it's that we don't have enough people able to do those jobs. Which makes sense, if everybody could easily become a neurosurgeon, it wouldn't be a highly paid job.